Black Widow

"I used to have nothing. And then I got this. This job. This family. And I was better because of it. And even though they're gone... I'm still trying to be better."

- Natasha Romanoff to Steve Rogers

Natalia Alianovna "Natasha" Romanoff, also known as Black Widow, was one of the most talented spies and assassins in the entire world and a founding member of the Avengers. Originally a KGB operative and dangerous assassin, Romanoff was recruited into S.H.I.E.L.D. by Clint Barton. Having extensive mastery in martial arts and armed with her Bite, Black Widow became one of S.H.I.E.L.D.'s most efficient agents. During one mission, she was sent undercover into Stark Industries to watch Tony Stark due to the fear that he was dying. During this mission, Romanoff assisted Stark with defeating Ivan Vanko's terrorist plots against him.

When Loki declared war on the Earth, Black Widow was recruited into the Avengers after Hawkeye had just been enthralled by Loki. Romanoff assisted in recruiting Stark and Bruce Banner into the team while they tracked down and attempted to capture Loki, eventually saving Barton from his grasp. Once Loki's entire plan had been uncovered, Romanoff joined the team during the Battle of New York and was instrumental in destroying the portal over the city which had been created by the Tesseract, effectively ending the entire invasion while Loki was defeated and captured.

In the wake of the Avengers successfully defeating Loki, Romanoff had continued her work with S.H.I.E.L.D., this time working with Captain America. While working together, Romanoff and Rogers uncovered a conspiracy following an assassination attempt on Nick Fury, which had eventually led to them discovering that HYDRA had somehow been infiltrating their entire organization. Despite the efforts of the Winter Soldier to stop them, Romanoff helped expose Alexander Pierce's evil schemes to the world, which also resulted in all of her own morally dubious history being revealed. As a result, Romanoff was forced into dropping off the grid again and began rebuilding her cover.

Romanoff eventually rejoined the Avengers, working to bring down various HYDRA cells across the world and assisting in the capture of Wolfgang von Strucker. However, before she could form a romantic relationship with Banner, the rogue artificial intelligence Ultron was created by Stark and Banner, forcing Romanoff and the rest of their team to join together and defeat him. Despite being captured, Romanoff was able to inform the team of Ultron's location on Sokovia, resulting in a final battle in which the Avengers had defeated Ultron once and for all. Unlike most members of the original Avengers, Black Widow remained a member while forming the second incarnation of the team.

As many of the governments of the world had demanded the Avengers to sign the Sokovia Accords in the wake of their recent battles, Romanoff agreed to their terms and signed the Accords. She later joined Iron Man in a fight against Captain America due to his disagreements with the Accords and his criminal activities with the Winter Soldier who Rogers was attempting to protect. As the two Avengers' factions fought against each other, Romanoff betrayed Iron Man's team in order to assist Captain America to find the instigator of the team's fight. As a result, Black Widow had to escape from the government for aiding Rogers, while being on the run, Romanoff soon joined him and Wilson in stopping terrorists.

When the threat of Thanos approached Earth, Romanoff, Rogers, and Wilson protected Vision, who had the Mind Stone, which Thanos was after. They later defended Wakanda from the attack, but were ultimately defeated when Thanos destroyed half of all life with the Infinity Gauntlet, where Romanoff emerged as one of the survivors. Romanoff was part of the Ambush on Thanos in an effort to retrieve the Infinity Stones and undo the Titan's snap, with no success.

Five years later, Romanoff led the Avengers alongside Captain America, now formed by Okoye, Rocket Raccoon, Nebula, War Machine, and Captain Marvel. In order to undo the Snap, the remaining Avengers split up in teams to retrieve all Infinity Stones from several alternate timelines in the Time Heist. Sent to retrieve the Soul Stone on Vormir with Barton, Romanoff, against Barton's insistence, willingly jumped off the Vormir mountains into the abyss below, sacrificing herself in the process in order to obtain the Soul Stone for the Avengers.

Red Room Training
"In the Red Room, where I was trained, where I was raised, they have a graduation ceremony. They sterilize you. It's efficient. One less thing to worry about. The one thing that might matter more than a mission. Makes everything easier, even killing."

- Natasha Romanoff to Bruce Banner

Natalia Alianovna Romanoff was born in 1984 in Stalingrad. At a young age, Romanoff was recruited by the KGB. At a Red Room Academy, she endured both an education and indoctrination into the world of spy-craft. Romanoff excelled in this strict training environment and soon became regarded as a master spy and one of the world's greatest assassins. Whilst in the Red Room Academy, she excelled in her marksman skills, which resulted in her being forced to execute an innocent man, which would later haunt her. Her ruthless effectiveness in later years earned her the Black Widow mantle, deriving from the Red Room program she went through. As a final ceremony to complete her training, Romanoff was sterilized, as to avoid any distractions and focus solely on her missions, something she deeply regretted later in her life.

On S.H.I.E.L.D.'s Radar
"I have a very specific skill set. I didn't care who I used it for, or on. I got on S.H.I.E.L.D.'s radar in a bad way. Agent Barton was sent to kill me. He made a different call."

- Black Widow to Loki

Due to both her expertise and her growing threat to global security, Romanoff quickly appeared on S.H.I.E.L.D.'s radar, prompting Nick Fury to send Clint Barton to eliminate her. Hawkeye disobeyed this order, recognizing her skill, and recommended her for recruitment for S.H.I.E.L.D. At the behest of Fury, Romanoff later defected from Russia and joined the ranks of S.H.I.E.L.D.

From that moment on, she developed a lasting partnership with Barton, becoming best friends with him. Together, they had tactical missions within Budapest, and many other locations. The pair became so close that Romanoff was the only other person Barton told about his family. She became a close family friend to Clint and his wife, Laura, and adopted an aunt-like relationship with their children, Cooper and Lila.

The Winter Soldier
"Five years ago, I was escorting a nuclear engineer out of Iran, somebody shot at my tires near Odessa. We lost control, went straight over a cliff, I pulled us out, but the Winter Soldier was there. I was covering my engineer, so he shot him straight through me."

- Natasha Romanoff to Steve Rogers

In 2009, when she was assigned to protect a nuclear scientist, she was attacked by the Winter Soldier, who was sent to kill the scientist. Though she and the scientist were pushed over a cliff, Romanoff managed to save both herself and the man she was protecting. Seeing this, the Winter Soldier fired a single round through Romanoff's stomach and into the scientist, effectively killing him.

After this encounter, Romanoff would go on to attempt to track down the Winter Soldier for an unspecified amount of time, but was forced to give up after accepting that he was more elusive than any other enemy she had encountered.

Natalie Rushman
"Oh, wow, very, very impressive individual. She's fluent in French, Italian, Russian, Latin. Who speaks Latin?" "No one speaks Latin, it's a dead language. You can read Latin, or you can write Latin, but you can't speak Latin." "Did you model in Tokyo? 'Cause she modeled in Tokyo."

- Tony Stark and Pepper Potts

Under the name "Natalie Rushman", Romanoff did modeling work in Tokyo, Italy, France and United States as part of an undercover operation from 2005 to 2007.

Romanoff was then sent on one of her usual missions, sent to ruin an operation of the Ten Rings. She boarded the Ten Rings plane and caused its explosion. Just as she was fighting off a Ten Rings operative in the plane, she was sent by Nick Fury to infiltrate Stark Industries. Later, Romanoff was hired as a Stark Industries notary public by Bambi Arbogast. Romanoff worked her way at getting to Tony Stark in many ways, including secretly making Samantha Carlisle sick in order to deliver documents to Stark.

Watching Tony Stark
"Who is she?" "She is from legal, and she is potentially a very expensive sexual harassment lawsuit if you keep ogling her like that." "I need a new assistant."

- Tony Stark and Pepper Potts

The ulterior motive for her employment was for her to keep an eye on Tony Stark after he signed his company over to Pepper Potts. In reality, Romanoff had been assigned to assess whether he was suitable for a Avengers Initiative. Romanoff arrived as Potts' replacement catching the attention of Stark and Happy Hogan while they were boxing. Romanoff then approached Stark and Hogan before requesting Potts to give her signature. As Potts signed the papers, Stark inquired Romanoff about her name, and she proceeded with her cover name "Natalie Rushman". Stark, unaware of Romanoff's true identity asked her to come into the boxing ring so that the two could talk. Potts insisted that Stark was in an eccentric mood, Romanoff assured her that it was fine. Entering the boxing ring, Romanoff faced Stark who was casually drinking some water out of thirst. Stark then told Hogan to give Romanoff a lesson for which Hogan didn't take seriously as he was unaware her past training as a spy. Stark asked her to spell her last name and ran a search on her and discovered that she was fluent in French, Italian, Russian, and Latin and had done some modeling in Japan. As Romanoff watched Stark ogle her, Hogan went to hit her, but Romanoff blocked the blow and scissored him around the head, pinning him to the ground. Romanoff then got out of the ring and obtained Stark's fingerprint despite an initial misunderstanding. Romanoff asked if Stark needed any further assistance with anything else, Potts politely dismissed her. Romanoff left, leaving Stark astounded. Romanoff went on to be Stark's assistant from then on.

Monaco
"You look fantastic." "Why thank you very much." "But that's unprofessional. What's on the docket?" "You have a nine-thirty dinner." "Perfect, I'll be there at seven."

- Tony Stark and Natasha Romanoff

Romanoff met Stark and Potts in Monaco who greeted them and guided Stark with the photographers and informed him of his nine-thirty dinner which he told her he'll arrive at eleven. When Stark appeared on the television, contesting in the Monaco Grand Prix, Potts called Romanoff over to see if she knew about it which she didn't. Potts asked for Romanoff to get Hogan and bring him to her so they could stop Stark.

Tony Stark's Party
"If this was your last birthday party that you were going to have, how would you celebrate it?" "I would do whatever I want to do, with whoever I wanted to do it with."

- Romanoff and Tony Stark

On Tony Stark's birthday, Romanoff walked in on Stark, who was observing his Arc Reactor in his chest which was getting worse, with a selection of watches to wear for his party. The two then talked about whether he should cancel his party due to recent events. Romanoff then covered up some of Stark's bruises on his face as Stark asked her what she would do if it was her last birthday, which she told him that she would do whatever she wanted with whoever she wanted to do it with before leaving. Taking in what Romanoff said, Stark got really drunk, flirting with Romanoff and letting her wear the Mark IV's gauntlet and blast an ice sculpture. After being frustrated with Stark's behavior, James Rhodes stole Iron Man Armor: Mark II and engaged in a fight with Stark, causing the party guests to leave. During Stark's and Rhodes' fight, Romanoff ran into Potts who confronted her saying that ever since she arrived she knew something wasn't right. Suddenly, the fight made its way to the two causing them to evacuate. Romanoff then contacted Nick Fury and debriefed him on the situation. When he offered to come, she told him not to.

Revealing Herself
"We've secured the perimeter. But I don't think we should hold it for too much longer." "Huh. You're f... fired." "That's not up to you."

- Black Widow and Tony Stark

Now dressed in her S.H.I.E.L.D. uniform, Romanoff met with Fury at Randy's Donuts to provide a short-term antidote to Stark's palladium poisoning. Sneaking in from the back entrance, Romanoff surprised Stark as she revealed to be a S.H.I.E.L.D. agent the entire time. Stark took off his sunglasses to get a better look at her. Seeing that she lied to him, Stark said she was fired, but Romanoff made it clear that it wasn't up to him. Fury introduced her to Stark revealing Natalie Rushman isn't her name and that she was assigned by Fury to watch him. Romanoff revealed to have given Stark a serum which postponed the effects of the Arc Reactor's radiation, which was poisoning his body, so he could work on a cure. Later, Romanoff, along with Fury and Phil Coulson, went to Tony Stark's Mansion and she was told by Fury that she was to remain in position as an assistant. Later at Stark Industries Headquarters, while Stark was visiting Pepper Potts, Romanoff walked in and requested for Potts to sign something. Romanoff was told by Potts to sort out the personal belongings with Stark. When Potts left, Stark grilled Romanoff, telling her that he found it amazing that she does what she does. When he claimed that she could not speak other languages, she replied in Latin, then repeated herself in English, telling him that he could, "Either drive himself home or she can have him collected."

Hunt for Ivan Vanko
"When we arrive I need you to watch the perimeter. I'm gonna enter the facility and take down the target. Watch the road."

- Natasha Romanoff to Happy Hogan

At the Stark Expo, Romanoff was in attendance with Pepper Potts when Ivan Vanko started to take control over the Hammer Drones. Romanoff and Potts followed Justin Hammer where they discovered that Vanko had taken control over the drones after Romanoff threatened Hammer. Romanoff left Potts and went outside where she ordered Happy Hogan to go to Hammer Industries Headquarters. As they drove, Romanoff, in the back of the car, stripped off her dress and got changed into her S.H.I.E.L.D. uniform. As Romanoff changed clothes, Hogan to tried to watch but when the car swerved Romanoff then noticed Hogan watching her and not the road, leading to Romanoff telling Happy to "Watch the Road." When they arrived at the facility, Romanoff told Hogan, who was confused about what she was wearing, to stay in the car. Romanoff broke into the facility using an ID card after several attempts and the two were approached by a guard who Hogan engaged in a fight while Romanoff continued to Vanko. She then defeated any guards in her way using multiple gadgets like her Taser Disks, Flash Bombs, Wire and as well as her skills. Coming towards the control room which she believed as Vanko's location, she subdued all the remaining guards with ease and continued to the location. Upon storming into the room, however, she instead found two guards dead and Vanko knowhere to be found in the facility. In reality, Vanko had disappeared moments before Romanoff and Hogan's arrival at the Hammer Industries Headquarters and was heading towards the Stark Expo so that he could ambush Tony Stark. Romanoff was able to gain back control over Rhodes' battle suit. She also informed Iron Man of Vanko arriving at his location after they defeated all the Hammer Drones. She then retrieved Hammer Industries data before Ivan Vanko's bombs went off, which caused many explosions at the Stark Expo, thus damaging a majority of the facility.

Big Problems
"These are gods and monsters and machines of war we're mixed up with."

- Natasha Romanoff

Returning to S.H.I.E.L.D. Headquarters with the data, she was given orders by Nick Fury to go to Culver University and watch over Bruce Banner. She arrived and witnessed Banner get locked in the bridge by Thaddeus Ross and the United States Army; Banner then transformed and a battle ensued.

She called Fury and barely escaped uninjured. She revealed to Fury that she witnessed Emil Blonsky in action against Hulk and that they enhanced him. Fury was forced to deploy Romanoff to Grayburn College after Ross revealed, in a short conversation, that he intended to capture Banner. She arrived too late, however, and informed Fury over the phone that Ross captured Banner and was taking him away in a helicopter.

Romanoff was then ordered to make sure that Banner did not leave anything for Samuel Sterns, with whom he had recently been, to work on. As she headed up the front steps, she witnessed Blonsky, now as Abomination, emerge from the building. She was buried in rubble, but still managed to make her way upstairs. She stumbled upon Sterns, whose mutation had heightened significantly, and his brain power had been augmented exponentially. After a brief dialogue with him, during which Sterns identified Black Widow's birthplace from a hint of accent in her voice, Romanoff shot him in the leg.

She called in a S.H.I.E.L.D. cleanup team and signaled her location on the roof with flares. She saw the chaos of Abomination and Hulk's battle in the distance. Back at S.H.I.E.L.D. Headquarters, she confronted Fury, stating that all of the events going on were too much to handle.

Security on the Helicarrier
Ignorant that Nick Fury had ordered Hawkeye to check the security of the Avengers Initiative database, Romanoff attacked Barton when he infiltrated the Helicarrier while wearing a mask. Fury arrived and stopped the scuffle; the three then discussed Fury's choices for the Avengers.

Back in Russia
"And... what do you get out of this if you "win"?" "Oh, I'm sorry, didn't I mention? If I win, I take over the mantle of "Black Widow"."

- Natasha Romanoff and Sofia

Once again on a mission, Romanoff arrived in Moscow where she searched for missing Stark Industries technology. Disguised as Tatiana Sokolova, she worked at a nightclub. While trying to interrogate Mikhail Fjodorov, one of the world's most successful illegal arms dealers, Fjodorov was killed by an unknown woman and Romanoff was forced to leave the club via the roof, fighting several security men.

After she returned to a hotel, she was attacked by a team of masked mercenaries, but she defeated them and received a SIM card to reach the mysterious woman she has seen in the night club. Later, Romanoff talked to Sofia and learned that she is a "fan" and wants to take over the name "Black Widow". Romanoff agreed to meet with Sofia and broke all her contacts with S.H.I.E.L.D..

A few days later, Romanoff confronted Sofia in a sports hall in Sochi, where she almost drowned in cold water, but she was saved at the last moment by Phil Coulson, who was following a pair of goons working for Starodoub. Coulson gave Romanoff the necessary equipment to infiltrate the yacht belonging to Yuri Klementiev, one of Starodoub's business partners, where she met Sofia again, an encounter which cost them Gennady Markov's life.

When Coulson discovered that Sofia was employeed by Richard Frampton, Natasha infiltrated his headquarters in Vladivostok. She discovered that Frampton works for the Ten Rings and that he had made a Jericho missile that would explode near the border between Russia and North Korea, greatly destabilizing the world peace. Romanoff infiltrated the launching area and destroyed the missile. Both Frampton and Sofia were killed in the explosion.

Interrogated by Georgi Luchkov
"I'll brief you on everything when you get back. But first, we need you to talk to the big guy." "Coulson, you know that Stark trusts me about as far as he can throw me." "Oh, I've got Stark. You get the big guy." "Боже мой!"

- Phil Coulson and Black Widow

Romanoff was tasked by S.H.I.E.L.D. with find and take down Georgi Luchkov who illegally sold weapons to the highest bidder. Romanoff was sent to spy on Luckkov's activities in Russia, however, she was knocked out from behind by his henchmen, who caught her sneaking around. When she awoke, she found herself tied to a chair, yet when Luchkov interrogated her, he unknowingly spilled all of his secrets. However, as Luchkov was preparing to seemingly torture Romanoff, and whilst the mention of torture gave Romanoff a scare, her interrogation was interrupted when Phil Coulson called and requested to speak to Romanoff. When Luchkov asked who was speaking to him, Coulson responded with the threat of sending a missile strike to their current location within the next thirteen seconds and assured him that he and his henchmen wouldn't have time to make it out of the facility. Coulson informed Romanoff that she needed to come in which she refused as she was in the middle of an interrogation and was working at getting more information out of the Russian general, but Coulson claimed that she had to come in now as a certain situation involving S.H.I.E.L.D. took precedence over her mission. She continued to oppose, claiming that Luchkov gave her everything. Luchkov, confused, misunderstood Romanoff's cryptic message and claimed to not have given her everything. Once Coulson informed her that Clint Barton was compromised as an incentive. Romanoff put Coulson on hold and then immediately freed herself and defeated Luchkov and his men. Coulson told Romanoff to go recruit Bruce Banner which she hesitated and asked to recruit Tony Stark, which Coulson had covered. Romanoff then picked up her shoes and left the warehouse and went to go recruit Bruce Banner.

Recruiting Bruce Banner
"You brought me to the edge of the city, smart. I... assume the whole place is surrounded?" "Just you and me."

- Bruce Banner and Natasha Romanoff

Romanoff traveled to Bruce Banner's hidden location in Kolkata, India. She had a child to act as if her father was sick to lead him into an abandoned house. As the girl fled through the window and disappeared into the night, Banner realized that it was a set up as Romanoff appeared in the hut wearing a traditional Indian sari, claiming that he picked a great place to settle. Banner, astonished, asked Romanoff if intelligence agencies used children to lure their targets into specific locations. Romanoff responded that she was used as a spy during her childhood, alluding to her time in the Red Room Academy. Romanoff told Banner that it was just the two of them, which was a lie as multiple S.H.I.E.L.D. agents were outside, awaiting an order to apprehend or kill Banner should he not cooperate. As Romanoff introduced herself, Banner inquired if she was sent to kill him, to which she responded no and that she was working on behalf of S.H.I.E.L.D. Banner curiously asked Romanoff how they found him and she reminded him that they never lost track of his whereabouts. When Romanoff revealed to the doctor that Nick Fury wished to recruit him, Banner presented her with a hypothetical situation in which he refused. Romanoff then promised that she would persuade him to join if he refused. She told Banner about the Tesseract and that they require his help to locate it as the Tesseract emits a weak Gamma Radiation signal. Banner reassured that Hulk was not needed which Romanoff told him that Nick Fury had not mentioned anything about Hulk. When Romanoff tried to assure Banner that he would not be imprisoned, Banner mocked rage to test her reaction; she pulled a gun on him and aimed it at his head, but Banner calmly explained he was testing her. Romanoff then ordered agents outside to stand down and convinced Banner to come with her.

Assembling on the Helicarrier
"It was quite the buzz around here, finding you in the ice. I thought Coulson was gonna swoon."

- Natasha Romanoff to Steve Rogers

Romanoff brought Bruce Banner onto the Helicarrier, to help locate the Tesseract. Phil Coulson then arrived with Steve Rogers and introduced the two before Romanoff told Coulson that he was needed on the bridge. The two then walked together and got acquainted and asked him if Coulson asked him to sign his trading cards. Romanoff then explained that Coulson's cards were vintage and was proud of owning them she introduced Rogers to Banner, despite the two having an awkward conversation initially with the latter having conceived that Rogers cared only about Banner's use. As Nick Fury and S.H.I.E.L.D. decided to lift the Helicarrier into the air, Romanoff recommended that they move inside as it would become hard to breathe. The Helicarrier then began to take off so the three went inside and headed towards the main control room which contained Agents Nick Fury, Phil Coulson, Jasper Sitwell, and Maria Hill. Inside the Helicarrier, Romanoff assisted Nick Fury and other S.H.I.E.L.D. agents in their global search for Clint Barton. Banner observed their work and asked them what they were doing, to which Fury responded that they were searching for Barton, who was missing, using cell phone signals, cameras, wireless phones, to triangulate his location, but Romanoff warned that using that method wouldn't find Barton and Loki in time so they could thwart his next plan. Under Fury's orders, Romanoff showed Banner to his new laboratory aboard the Helicarrier, promising that S.H.I.E.L.D. has the scientific and modernly advanced resources and equipment for him to complete his work.

Capturing Loki
"I'd sit this one out, Cap." "I don't see how I can." "These guys come from legends, they're basically gods." "There's only one God, ma'am. And I'm pretty sure he doesn't dress like that."

- Black Widow and Captain America

S.H.I.E.L.D. located Loki in Stuttgart, Germany and Romanoff flew on Quinjet to this location with Steve Rogers. As Captain America fought Loki, Romanoff tried to get a shot at Loki, but was unable to due to Loki using his magic to make multiple illusions of himself appear. Suddenly, loud AC/DC'S "Shoot to Thrill" started to play on the Quinjet as Iron Man flew in to help to ask if she had missed him, making Romanoff smile. They succeed in capturing Loki and brought him on the Quinjet to take him to the Helicarrier. On their way back in the Helicarrier, Nick Fury asked Romanoff whether Loki had said anything, which Romanoff informed him that Loki had stayed silent. Suddenly, an unexpected lightning storm was taking place and Thor suddenly entered the Quinjet and left with Loki in tow. Romanoff asked if Thor was another Asgardian as Iron Man went to retrieve him. Rogers then went to join Stark, when Romanoff warned him that he should sit this one out as Thor comes from legend and is basically a god, but he chose to fight anyway.

Interrogating Loki
"I've got red in my ledger, I'd like to wipe it out." "Can you? Can you wipe out that much red? Dreykov's daughter? São Paulo? The hospital fire? Barton told me everything."

- Natasha Romanoff and Loki

As Loki was being locked up, Romanoff listened in as he and Nick Fury talked to each other. Romanoff told Thor that Erik Selvig and Clint Barton are under Loki's control. When Thor told Bruce Banner to take care of how he speaks about Loki as he is his brother, Romanoff informed him that Loki had killed eighty people in two days making Thor tell them that Loki was adopted. Romanoff decided to interrogate Loki and find out his intentions. Romanoff approached the demigod Loki, undetected so she could interrogate Loki which he noted that not a lot of people could sneak up on him. Romanoff wanted to know what Loki has done with Clint Barton which Loki told her that he had expanded his mind. Whenever Romanoff asked what would happen to Barton after Loki had conquered Earth, Loki questioned Romanoff's feelings asking if it was love. Romanoff made it clear that she owed Barton a debt and she told Loki about her history with Barton. Loki instead told Romanoff that she fought in the service of killers her whole life, asking her if she would be willing to sacrifice the fate of humanity for the safety of Barton. Romanoff decided to pretend to break down her barriers to Loki so he would reveal his plans. Loki then began to taunt Romanoff telling her about her history which Barton had told him about. Loki then told Romanoff that he would force Barton to kill Romanoff but he ended up revealing that he planned on unleashing Hulk. Romanoff then warned S.H.I.E.L.D. about Loki's plan and went to escort Banner to his room.

Loki's Manipulation
"Loki is manipulating you." "And you've been doing what exactly?" "You didn't come here because I bat my eyelashes at you." "And I'm not leaving because suddenly you get a little twitchy."

- Natasha Romanoff and Bruce Banner

After figuring out Loki's plan to unleash Hulk, Romanoff made her way to the lab Bruce Banner was working in to escort him. Banner looked at Romanoff shocked, asking her if she knew about Phase Two, which involved S.H.I.E.L.D. using the Tesseract to create weapons, which is what the Avengers believed Nick Fury wanted them for. Romanoff instead attempted to convince Banner to leave the room as his transformation into the Hulk and subsequent rampage was an integral part of Loki's escape plan. After Banner reminded them that he remained peacefully unbothered for two years in Kolkata, India, Romanoff then warned him a second time that Loki was manipulating him and using him as well as the rest of the Avengers to finally put his plans of the Chitauri Invasion into effect, which Banner did not believe and only thought about Fury's lie and still wondered if Romanoff knew about the second phase. A shocked Banner then asked her what she was doing the whole time, to which she responded that he did not willingly come to the Helicarrier to assist the Avengers in finding the Tesseract just to watch her. An argument erupted between the Avengers due to the effects of the Mind Stone. While the group argued, Clint Barton, under the control of Loki, fired an explosive arrow onto the Helicarrier which blew up the lab. Romanoff was briefly knocked out and she and Banner were thrown into another room.

Attack on the Helicarrier
"Doctor Banner... Bruce, you gotta fight it. This is just what Loki wants. We're gonna be okay. Listen to me. We're gonna be okay, right? I swear on my life, I will get you out of this! You will walk away, and never–" "Your life!"

- Romanoff and Bruce Banner

Whilst Romanoff lay senseless on the floor, a large piece of equipment had fallen on to her foot, and she awoke to find herself trapped with Bruce Banner transforming into Hulk. Romanoff attempted to calm Banner down, but he was too angry. Romanoff saw two S.H.I.E.L.D. agents coming to help, but she told them to leave, knowing they would be in danger. As Romanoff tried to free herself, she witnessed as Banner transformed into Hulk, leaving Romanoff horrified. Romanoff eventually freed herself and attempted to escape from Hulk. Filled with rage, Hulk chased after Romanoff and nearly killed her. Romanoff tried to hide from Hulk but she could not escape from him. Romanoff attempted to fend herself off from Hulk and barely did causing her to try to run away from Hulk. Hulk managed to outrun Romanoff and threw her aside, which winded her and broke 2 of her ribs. As Hulk went to kill Romanoff, Thor charged into Hulk saving Romanoff. Still dazed after her encounter with Hulk, Romanoff was forced to take on Clint Barton who was under Loki's control. Barton was walking down the Helicarrier when he was confronted by Romanoff who snuck up behind him in an attempt to disarm him. He immediately turned around sensing her precense and the two friends had a prolonged fight using her combat skills, Romanoff was able to fight Barton and defend herself from his attacks with his bow and arrows and knife. Barton fired several arrows at, although Romanoff was able to dodge them, agilely moving between the confounded area. Barton used all his top-level training to kill his friend, and Romanoff was able to steal Barton's bow off him, causing him to draw out his knife. When the fight got dirtier, including attempting to drive the knife into her neck while pulling her hair back, Romanoff used her teeth to bite him in order to disarm Barton, forcing him to drop his knife. In the end, Barton was no match for Romanoff's speed and quick-thinking and eventually, she got the upper hand, disarming him and slammed Barton's head onto a steel pipe. The blow weakened Loki's grip on Barton's mind and he recognized Romanoff, calling her by her first name before she knocked him out with a final strong punch to the head, breaking his connection to Loki and restoring his mind. Romanoff watched as Barton was taken away by a S.H.I.E.L.D. team to be rehabilitated. She was then informed of Phil Coulson death by Nick Fury.

Clint Barton's Recovery
"Do you know what it's like to be unmade?" "You know I do."

- Clint Barton and Natasha Romanoff

After Romanoff defeated Clint Barton, he was arrested and tied down until it was certain that Loki's control was gone and he was no longer a threat. Romanoff looked after Barton in the recovery room, listening to him as he described the experience, which he compared to being unmade, which Romanoff understood from past experiences. Despite him asking, Romanoff refused to tell Barton how many S.H.I.E.L.D. agents he had killed, telling him that Loki and Loki alone was responsible for the killings and he must not blame himself. When Captain America arrived to ask Romanoff if she could pilot a Quinjet, Barton told him he could. After Romanoff gave him the nod of approval, Rogers allowed Barton to join them on the mission.

Battle of New York
"Just like Budapest, all over again." "You and I remember Budapest very differently."

- Black Widow and Hawkeye

Black Widow was prepared to fight Loki beside the other Avengers and his Chitauri army, though being a spy and not a soldier. Hawkeye flew her and Captain America to New York City in a Quinjet where the portal had already opened over the city, allowing thousands of aliens to enter and attack. Loki managed to shoot the Quinjet out of the sky and the team fought the extraterrestrials on the ground. Bruce Banner, meanwhile, reunited with the Avengers, arriving to the site on a motorcycle. Banner deemed it an appropriate time to morph into the Hulk. Alongside Hawkeye, Black Widow fought the oncoming horde of Chitauri soldiers until the rest of the Avengers arrived. Black Widow used all her skills and weapons to defeat the Chitauri army while the civilians all clear out. While Black Widow and Hawkeye fight the Chitauri, she reminded him that the situation of being similar to a mission they took place in Budapest, which Hawkeye told Black Widow that he remembered Budapest differently. Meanwhile, Captain America won the trust of the NYPD officers, who assisted the Avengers in their fight. When the others arrived, Captain America ordered that Black Widow and he would stay on the street to protect the people and keep the fight where they could control it. She and Captain America fought hard; She used her bite and guns to kill dozens of Chitauri soldiers. Eventually for Black Widow, the fight was almost too exhausting for her. After a while, she decided to change her positions and asked Captain America to give her a boost so she could fight the Chitauri from their ships.

Closing the Portal
"Captain, none of this is going to mean a damn thing if we can't close that portal." "Our biggest guns couldn't touch it." "Well, maybe it's not about guns."

- Black Widow and Captain America

Eventually, the plan of keeping the fight contained proved meaningless; she decided to obtain one of the Chitauri Chariots and fly it to Stark Tower. On the way she was chased by Loki and called on Hawkeye to shoot him out of the sky. She eventually made it to Stark Tower where the portal to their domain was open and met Erik Selvig, who had come out of the mind control. Selvig expressed horror at his actions; however, Romanoff, assured him that it wasn't his fault as he was brainwashed with the Scepter. However, S.H.I.E.L.D. finally decided to launch a nuclear missile on New York City to end the Chitauri Invasion once and for all; this prompted Iron Man to intercept the nuclear missile and fly it straight through the portal, where he released the missile on the Chitauri Command Center, which destroyed the station. Romanoff and Selvig used the Scepter to finally close the portal for good right after Stark descended back to Earth and landed on the streets of the downtown, thus ending the Chitauri Invasion. Moments after the invasion ended, Romanoff, alongside the other Avengers, confronted Loki on the top level of Stark Tower who got up after having been thrown to the ground multiple times by the Hulk. While she held the Scepter in her hands, the others armed themselves with weapons with Barton armed with his arrows, Captain America with his shield, Iron Man with his repulsors, and Thor armed with Mjølnir. Loki then asked for the drink, finally accepting his defeat. After the Battle of New York, a cadre of STRIKE agents led by Alexander Pierce and Jasper Sitwell arrived at Stark Tower. Agents Brock Rumlow Sitwell arrived on the top floor to intercept the Scepter. Romanoff gave STRIKE the Scepter then warned Sitwell, who was holding the item, to be careful with the weapon as it had the capability to erase minds. Both Sitwell and Rumlow promised to exercise caution with the weapon. As Loki apprehended, Romanoff and Barton elected to remain in Stark Tower to rest from the battle. Later, the team took a breather at the Shawarma Palace before they were interrupted by War Machine, who arrived too late to help in the battle. The Avengers gathered together in Central Park the next day to send Thor with Loki and the Tesseract back to Asgard. While Loki was in chains, Romanoff whispered something in Barton's ear about Loki's punishment, causing Barton to grin. When the team went their separate ways, Romanoff left with Barton in a S.H.I.E.L.D. car.

Zodiac
"A lie, yes... but well-intentioned."

- Natasha Romanoff

After participating in the Battle of New York, Romanoff became partners with Captain America and they ran many operations together. One such operation occurred upon the theft of the Zodiac weapon from S.H.I.E.L.D. Romanoff was tasked to infiltrate Baker's terrorist cell using the alias "Audrey". Posing as Audrey, she spent several weeks undercover determining what Baker's plan for Zodiac was.

Upon discovering Baker's plan to release the Zodiac in the Willis Tower in Chicago during the height of the day, killing all within, Romanoff alerted Captain America. Romanoff, Rogers, and Brock Rumlow confronted Baker's cell in the Skydeck of Willis Tower, and after a brief combat, subdued the terrorists, and recovered the Zodiac.

Brooklyn
"My work for S.H.I.E.L.D. has taken me all over the world... and that is, without a doubt, not just the best milkshake in Brooklyn... but on the whole darn planet."

- Natasha Romanoff to Steve Rogers

Receiving intel that Sana Amanat was going to be abducted, Nick Fury dispatched Romanoff and Steve Rogers to New York City on protection detail. Under the guise of Rogers showing Romanoff the places that he grew up, they managed to draw out the Cadre mercenaries that had set up in multiple locations throughout the neighborhood. Tracing the mercenary that had abducted Amanat through a maze of alleyways, Rogers succeeded in taking out the last mercenary with a little help from Amanat herself.

Picking up Steve Rogers
"Hey, fellas. Either one of you know where the Smithsonian is? I'm here to pick up a fossil."

- Natasha Romanoff to Steve Rogers and Sam Wilson

Romanoff drove down to Washington, D.C. where she would pick up Steve Rogers who was talking with Sam Wilson. Romanoff sent Rogers a text to meet her as they had a mission and drove up to the two. As Rogers made his way in the car, Romanoff joked about his age by calling him a fossil. The two then drove away to meet up with the STRIKE team.

Fighting the Pirates
"You're saving S.H.I.E.L.D. intel." "Whatever I can get my hands on." "Our mission is to rescue hostages." "No, that's your mission, and you've done it beautifully."

- Captain America and Natasha Romanoff

Romanoff and Rogers were sent with the STRIKE unit to retake the Lemurian Star that was hijacked by pirates led by Georges Batroc. Romanoff and Rogers were debried about their mission by Brock Rumlow. As the team got ready to land, Romanoff and Rogers chatted about Saturday night plans which Rogers had none. She also tried to get Rogers to ask a woman out but he claimed he was too busy as he jumped out of the Quinjet without a parachute. As the Rogers and the rest of STRIKE team went to rescue the hostages, Romanoff suggested that he ask out the nurse across the hall from him and proceeded to the engine room. As Batroc ordered a pirate to start the engines, Romanoff snuck up behind him and knocked him out, as well as several other pirates as she grappled down the boat. Rogers asked Romanoff for her status as she was in the middle of a fight with a few pirates in the engine room. She secured the room and knocked out the final pirates with a blow to the face with a steel pipe. She then proceeded with her mission, collecting the confidential information regarding Project Insight on the flash drive. When Rogers knocked out Batroc, he discovered Romanoff's real mission was to retrieve confidential protected S.H.I.E.L.D. files in a flash drive. Romanoff insisted that his mission was to rescue the hostages, while hers was to secure the information on the Lemurian Star. As the two argued about the mission, Batroc threw a grenade at them which Rogers knocked away and Romanoff shot the glass and the two jumped through the window, just getting clear of the blast. Romanoff took responsibility for Batroc getting away and the two made their way to the Quinjet.

Nick Fury's "Death"
"Most of the intelligence community doesn't believe he exists. The ones that do call him the Winter Soldier. He's credited with over two dozen assassinations in the last fifty years."

- Natasha Romanoff to Steve Rogers

Romanoff met up with Steve Rogers at the hospital and witnessed Nick Fury being operated on. Romanoff asked Rogers about the shooter; Rogers responded that the shooter was fast, strong, and had a metal arm. This description seemingly confirmed to Romanoff that the assassin that shot Fury near Fury's apartment was the Winter Soldier. As Maria Hill joined them, she told the two the ballistics were untraceable, and Romanoff provided the two with the fact that the bullets were Soviet-made. The three then watched as the doctors attempted to revive Fury but were failing to do so as he was shot multiply times near the heart. Fury's unsuccessful surgery left Romanoff devastated as she watched the doctors announce that Fury was deceased. As Fury seemingly died in surgery due to his multiple gunshot wounds, Romanoff mourned his "death" and asked him not to die on her. Romanoff was forced to say her goodbyes to Fury when Hill told them that she needed to take Fury. Some time later, Romanoff and Rogers were allowed to analyze Fury's corpse. Sensing his presence, she immediately stormed out of the autopsy room. Romanoff then asked him why Fury was in his apartment the night he was shot, which he claimed not to know, but Romanoff could tell that he was lying. Their brief conversation was interrupted by Brock Rumlow, who informed Rogers that S.H.I.E.L.D. needed him back at the Triskelion. After Rogers was made a fugitive by Alexander Pierce, he went back to the hospital to retrieve the USB he left in a vending machine behind pieces of gum only to find it was gone. Romanoff then stood behind Rogers chewing gum, implying she took the USB. Rogers then questioned Romanoff about the USB's location and what was on it which she told him that it was safe and that she didn't know what was on it. Rogers then shared his theory that Fury hired Georges Batroc and his pirates to hijack the Lemurian Star, to which she confirmed, saying that the ship was dirty and Fury needed a way to obtain the files pertaining to the true intentions of Project Insight. She then told him that Fury was killed by the assassin known as the Winter Soldier and she had encountered him in 2009 during her thwarted mission in Odessa, Ukraine. She then warned Rogers that the Winter Soldier was a ghost story, noting that many of the intelligence communities don't believe he even exists, also providing advice that going after him is a dead as she had tried for years to uncover his true identity after their first encounter but failed to do so. Steve then insisted that they find the assassin. Romanoff was then deemed an ally by Rogers, who decided to uncover the mystery behind Project Insight with her.

On the Run from S.H.I.E.L.D.
"Kiss me." "What?" "Public displays of affection makes people very uncomfortable." "Yes, they do."

- Natasha Romanoff and Steve Rogers

Romanoff, who was now also on the run from S.H.I.E.L.D., followed Steve Rogers and they went to an internet cafe to see if there was any valuable information on the drive. As Romanoff tried to decrypt the USB, she informed Rogers that they had nine minutes until S.H.I.E.L.D. would find them. As the two looked through where the USB files came from, Aaron asked if they needed help which Romanoff told him that she and Rogers were looking for honeymoon locations as the USB located where the files originated, New Jersey. The conversation shifted as Aaron claimed to have the same glasses that Steve was wearing as part of his disguise, followed by an awkward silence. The two left the Apple Store moments later, only to discover that the STRIKE unit had already arrived at the mall to find them. On the way out, Romanoff and Rogers evaded Brock Rumlow and other STRIKE operatives dressed as bystanders and the two kissed to make them avert their gaze.

HYDRA's Plan
"Project Insight requires insight. So I wrote an algorithm." "What kind of algorithm? What does it do?" "The answer to your question is fascinating. Unfortunately, you shall be too dead to hear it."

- Arnim Zola and Natasha Romanoff

They stole a car and drove to Camp Lehigh in New Jersey. The two talked during the drive including Romanoff asking if the time they kissed in the mall was the first kiss he had since 1945. They then arrived at the army camp where Rogers had trained during World War II. At first, Romanoff thought the base was a dead end due to there being no heat signatures of radio signals, making her believe whoever wrote the files must have used a router to throw people off. Rogers then discovered a building which was in the wrong place of the base and they then entered. There, they found a secret storage room full of old computers inside an abandoned S.H.I.E.L.D. office. In there, they found a more modern looking USB slot and they put the USB in. Having inserted the USB drive, Romanoff quoted a line from an old movie, asking Rogers if he watched it to which he replied yes.The computers powered up and someone began to talk to them. The voice turned out to be Arnim Zola, who told them that he was recruited by S.H.I.E.L.D. after World War II and that he helped to rebuild HYDRA, inside S.H.I.E.L.D. In the 1970s, after being told he would soon die, he transferred his mind into a computer database. Romanoff identified this project as Operation Paperclip, a S.H.I.E.L.D. project that involved recruiting defected Nazi scientists to help their cause. As Rogers noted that HYDRA died with the Red Skull's demise, Zola countered his statement, revealing that he used his recruitment as an opportunity to rebuild HYDRA. To prove this to the two oblivious S.H.I.E.L.D. agents, Zola played footage of HYDRA's defeat during World War II and mentioned that he was recruitment by S.H.I.E.L.D. in the late 1970s after the war. Zola establishing how he rebuilt HYDRA cells while maintaining his job for S.H.I.E.L.D. He then brought up examples of operational anomalies across the globe, implying that HYDRA masterminded behind dozens of events that changed history. Romanoff and Rogers soon learned Zola was also involved in the Winter Soldier Program with Zola providing some blurred photos of the Winter Soldier eliminating HYDRA threats such as Howard Stark and providing Nick Fury's recently updated file from the Internet. At the instance upon Zola mentioning that HYDRA's plan was involved with Project Insight and gloating that Captain America would soon die, Rogers immediately punched the monitor screen. However, Zola appeared on other computer monitors. As Rogers and Romanoff tried to extract more information out of Zola pertaining to Project Insight and his algorithm, Alexander Pierce sent a missile to Camp Lehigh to blow up the base. They both survived the blast, however, Romanoff was knocked unconscious.

Seeking Refuge
"When I first joined S.H.I.E.L.D. I thought I was going straight. But I guess I just traded in the KGB for HYDRA. I thought I knew whose lies I was telling, but I guess I can't tell the difference anymore." "There's a chance you might be in the wrong business."

- Natasha Romanoff and Steve Rogers

The next day, Romanoff and Rogers went to seek refuge with Sam Wilson as everyone else they knew was trying to kill them. Romanoff told Rogers that when she joined S.H.I.E.L.D. she believed she was going straight instead of just trading the KGB for HYDRA. Romanoff then asked Rogers would he trust her if it was up to her to save his life which he told her he trusts her now. Wilson then interrupted the two to inform them that he made breakfast which he was unsure if that was something they ate. Romanoff and Rogers began to question who could launch a domestic missile strike which Rogers figured out it was Alexander Pierce, as Zola's algorithm was onboard the Lemurian Star along with Jasper Sitwell. As the two thought how to kidnap a S.H.I.E.L.D. officer as they are the most wanted people in Washington which Wilson suggested that he do it and showed them files of missions that he used the EXO-7 Falcon suits on. Wilson told them where they could find one of the EXO-7 Falcon suits and the protection it has, which Romanoff saw as no trouble. Romanoff read the file and with surprise, she learned that Wilson was involved in the mission involving the capture of Khalid Khandil in Afghanistan. Wilson also noted how he lost his best friend and wingman, Riley, during the apprehension. The three geared up and headed towards Jasper Sitwell's current location to interrogate him.

Kidnapping Jasper Sitwell
"Is this little display meant to insinuate that you're gonna throw me off the roof? Because it's really not your style, Rogers." "You're right. It's not. It's hers."

- Jasper Sitwell and Steve Rogers

Focusing their attention to Jasper Sitwell, Natasha, Sam, and Steve located the HYDRA mole and abducted him. Despite having been interrogated at the top of the roof as a means of intimidating him, Sitwell refused to answer the questions, only taunting Rogers that he could not throw him off the building, only for Romanoff to kick him off the building. The two then discussed people who Steve could date, including Sharon Carter, his neighbor. Terrified, Sitwell finally confessed that HYDRA had hijacked Project Insight, further explaining that Zola's Algorithm was developed to eliminate potential threats to HYDRA, including Bruce Banner and Stephen Strange, and many others. Still under duress, Sitwell proceeded to reveal that HYDRA's ultimate plan was to use the Insight Helicarriers to eliminate the list of threats directly from the Triskelion.

Battle of Washington, D.C.
"Insights launching in sixteen hours. We're cutting it a little bit close here."

- Natasha Romanoff

As Romanoff, Steve Rogers and Sam Wilson drove their way to infiltrate the Triskelion, they were interrupted when they were attacked by the Winter Soldier who jumped on their car and threw Jasper Sitwell out, killing him. Romanoff went to shoot the Winter Soldier when an oncoming car ran into them from behind, causing Romanoff to drop her gun. When the Winter Soldier caused the car to crash, Rogers grabbed Romanoff and Wilson and jumped out of the moving car. While Rogers crashed into a bus, Romanoff and Wilson came under heavy fire. As the Winter Soldier and HYDRA mercenaries shot at the two, Romanoff continued to shoot back at them while hiding behind a car, until the Winter Soldier shot the car shielding her with one of his grenade launchers, forcing her onto the intersecting highway. Romanoff ran away from the incoming cars and used her bite to grapple off the bridge, while a car fell off the bridge, exploding. As the firefight continued, Romanoff attempted to outrun the Winter Soldier, only for her to see his shadow from above the highway. Romanoff then decided to trick the assassin into believing that he killed her. Believing that he successfully killed Romanoff, the Winter Soldier attempted to shoot at a bus's engine to cause an explosion, until Romanoff suddenly shot the Winter Soldier in his goggles from the ground. She then used that opportunity to move behind the bus for protection. However, the Winter Soldier survived due to his protective goggles, and responded by shooting at Romanoff's direction with his gun. As the two mercenaries shot at each other, Romanoff decided to run in hope to escape but the Winter Soldier personally decided to pursue her while the mercenaries were dispatched to find and kill Rogers. Knowing she could not escape the Winter Soldier, Romanoff distracted him with a radio message on her phone letting her get the jump on him. As the car exploded, however, the Winter Soldier immediately discerned the trick and turned around to continue looking for her. As the Winter Soldier spotted her, he engaged in a hand to hand fight with Romanoff. She was able to use her skills as a former spy to use deception and gadgets to gain the upper hand against her opponent. She managed to temporarily subdue the Winter Soldier and attempted to strangle him. However, he threw her off and attempted to shoot her until she disabled the Winter Soldier's Prosthetic Arm with her Taser Disk. After temporarily subduing the Winter Soldier, Romanoff continued to run and telling civilians to leave and stay out of harm's way until was shot in the shoulder. As the Winter Soldier finally attempted to eliminate Romanoff, Rogers interrupted their fight, saving her. Rogers then fought the Winter Soldier himself until his mask was removed revealing himself to be Bucky Barnes, whom Steve died during the Capture of Arnim Zola years ago. Before he could shoot Rogers, Romanoff saved him by firing a grenade launcher, causing him to flee. A team STRIKE agents led by Brock Rumlow and Jack Rollins apprehended Romanoff, Rogers, and Wilson.

Reunited with Nick Fury
"We have to stop the launch." "I don't think the Council's accepting my calls anymore."

- Natasha Romanoff and Nick Fury

During the drive, Steve Rogers informed Sam Wilson and Romanoff that the Winter Soldier's true identity was Bucky Barnes, his friend who supposedly perished during World War II. Wilson questioned how it was possible given that the last time Steve saw Bucky was 70 years ago. As Rogers told Romanoff that Arnim Zola was most likely the mastermind behind Bucky's transformation into the assassin that he currently was, Romanoff assured Steve that it wasn't his fault. Wilson could see the Romanoff needed a doctor as she was losing blood from her gunshot wound and panicked at one of the STRIKE guards to treat her injury. One of the guards drew an electric rod as a threat; however, the guard threatening them instead neutralizes the other STRIKE operative sitting across from them. The guard who rescued them is revealed to be Maria Hill, who asks who Sam was before using a Mouse Hole to escape with the three fugitives. Hill took them to a secret facility where an alive Nick Fury shocked Romanoff. Romanoff was then taken to Fine who treated her wound as Fury told them how he faked his death: He used a drug developed by Bruce Banner, Tetrodotoxin B, to relieve stress. While Fine put pressure on her gunshot wound, Fury elaborated on his history with Alexander Pierce, noting that he met him in Bogota years ago and was offered the Nobel Peace Prize for his heroic actions during a hostage takeover. After Romanoff was bandaged up, Hill and Fury revealed that there was a plan in place to stop Project Insight by disabling it inside the Triskelion. However, Steve seized control of the mission much to Fury's dismay, claiming that S.H.I.E.L.D. needed to be destroyed to ensure HYDRA's destruction and condemned his Fury for witholding information about the HYDRA Infiltration of S.H.I.E.L.D. The group decided that at the end of all of it, that S.H.I.E.L.D. and HYDRA had to be eliminated for good.

Battle at the Triskelion
"I'm sorry. Did I step on your moment?"

- Natasha Romanoff to Alexander Pierce

To stop Project Insight, Romanoff used a Photostatic Veil to disguise herself as Hawley and infiltrated the World Security Council. As Romanoff stayed with Alexander Pierce, Captain America, along with Falcon and Maria Hill infiltrated the Triskelion and revealed that S.H.I.E.L.D. was compromised by HYDRA. The council was held hostage by STRIKE who were all HYDRA agents until she took them down and stopped Pierce from executing Singh, thus revealing herself to everyone. Romanoff then began disabling security protocols, releasing all of S.H.I.E.L.D. and HYDRA's secrets onto the Internet. When the encryption required to be disabled, which needed two Alpha Level members, Romanoff told Pierce that company was coming right as Nick Fury arrived. Fury and Pierce gave their authorizations to release all of the files which Romanoff pointed out that it was trending on the internet. Pierce then activated a button on his phone causing all of the council members chests to explode due to their security tags except for Romanoff's. As Captain America and Falcon were successful in destroying the Helicarrier's, Romanoff was ordered by Pierce to accompany him, but as he escaped while claiming that she was going to fly with him to an undisclosed location as his hostage, Romanoff used her bite to disarm her security tag, knocking herself out and letting Fury shoot Pierce, killing him. Fury then checked on the unconscious Romanoff, who came round shortly after. Romanoff and Fury then piloted the helicopter and flew to Falcon's location, where a Helicarrier was crashing into the side of it, which destroyed a big amount of the Triskelion. They flew the chopper around the northwest corner to catch Falcon who dove out of the window and fell through the chopper, but was caught by Romanoff and pulled him up. The three then flew away as Romanoff asked Hill if she knew where Captain America was.

A New Start
"You need us. Yes, the world is a vulnerable place, and yes, we help make it that way, but we're also the ones best qualified to defend it. So if you want to arrest me, arrest me. You'll know where to find me."

- Natasha Romanoff

Romanoff later attended a government inquiry into the HYDRA affair. When asked why no one has heard from Steve Rogers, which she believed there was nothing more for him to say due to the wreck in the middle of the Potomac made his point. Romanoff also told them that HYDRA was selling the government lies instead of intelligence which General S. Scudder pointed out that Romanoff was responsible for handing out those lies. When it was brought to attention that Romanoff should be arrested, she stated that she and the other agents that fought against HYDRA in the HYDRA Uprising would not be arrested because they are the best qualified to protect the world and then left the inquiry confident of her future within the Avengers, although she left S.H.I.E.L.D. Now that her secrets were revealed to the world, Romanoff needed a new identity.

One Last Favor
"That thing you asked for, I called in a few favors from Kiev. Will you do me a favor? Call that nurse." "She's not a nurse." "And you're not a S.H.I.E.L.D. agent."

- Natasha Romanoff and Steve Rogers

At the personal request of Rogers, Romanoff had contacted some of her acquaintances in Kiev who sent her an old top secret document about the Winter Soldier and his own long history working for HYDRA. Later, she stopped by Nick Fury's fake grave, she told Rogers that she wasn't going with Fury or staying as she had blown all her covers and needed new ones. Romanoff gave the document to Rogers and told him to do her a favor and call Sharon Carter and kissed him goodbye. Before she left she told Rogers to be careful before digging deeper into finding the Winter Soldier, warning him that he may not want to cause himself more trouble.

Finding Her Parents
"After everything that happened with S.H.I.E.L.D., during my little hiatus, I went back to Russia and tried to find my parents. Two little gravestones by a chain-link fence. I pulled some weeds and left some flowers. We have what we have when we have it."

- Natasha Romanoff to Steve Rogers

A few months later, after Phil Coulson's reorganization of S.H.I.E.L.D., Romanoff contacted Melinda May. A while after S.H.I.E.L.D.'s downfall, Romanoff went back to Russia in hopes of finding her parents, who she barely knew. Romanoff soon got a location, only to learn her parents had since died, so she placed some flowers on their graves. Romanoff then returned home, reconciling herself to accept what she had when she had it.

Fighting HYDRA
"Thank you for choosing Air Widow. We hope you've enjoyed your flight."

- Black Widow

With the rising threat of HYDRA, the Avengers team was officially reassembled, with the financial backing of Tony Stark. Using the Avengers Tower as their headquarters, they embarked on several missions to thwart HYDRA's plans for world domination. Romanoff was in Sudan when she hijacked a plane carrying HYDRA operatives meeting with Jensen who had perfected a weapon using Chitauri technology. Finding a platoon of armed soldiers there, Romanoff had J.A.R.V.I.S. assemble the Avengers to provide her with assistance. Ultimately, the Avengers and Romanoff defeated HYDRA and Jensen and destroyed her weapon.

Attack on the HYDRA Research Base
"Loki's Scepter must be here. Strucker couldn't mount this defense without it. At long last." "At long last is lasting a little long, boys."

- Thor and Black Widow

The Avengers' next mission together was to recapture the Scepter from HYDRA Research Base. Black Widow stole a jeep so she and Hawkeye could keep up with the rest of the Avengers as they fought HYDRA soldiers. Black Widow crashed the jeep and pursued to fight on foot using her skills and weapons to kill many HYDRA operatives sent by Wolfgang von Strucker. When Thor pointed out that the Scepter must be at the base at long last, Black Widow said that the long last was lasting a little longer. When Hawkeye was injured, Black Widow immediately went to aid and told the others that they needed to evacuate. When the battle was won, Black Widow watched as the remaining HYDRA soldiers were being apprehended by the Iron Legion. Captain America told Black Widow to get to Hulk and calm him down. As Black Widow approached Hulk, she took off her gloves and began the lullaby method to calm him down. The lullaby worked and it caused Hulk to calm down and transform back into Bruce Banner. On the way back to Avengers Tower, Romanoff told Banner that the lullaby worked better than ever although he was not expecting the battle to need Hulk. Romanoff then told Banner that if he had not of fought than Barton would have been killed. Romanoff asked Thor for an assessment of Banner's skills on the battlefield; Thor commented on Hulk's violence has resulted in the deaths of dozens of HYDRA soldiers. Seeing that this upset Banner, Thor told him that many of the injuries he inflicted on the soldiers were nonfatal.

Celebration
"He's not so bad. Well, he has a temper. Deep down, he's all fluff. Fact is, he's not like anybody I've ever known. All my friends are fighters, and here comes this guy, spends his life avoiding the fight because he knows he'll win."

- Natasha Romanoff to Bruce Banner

When the Avengers returned from Sokovia, Romanoff stayed by Clint Barton's side while his injured skin was being repaired by Helen Cho using a device called the Cradle. Romanoff asked if her friend was going to be ok and she joked that pretending to need him brought the team together. Bruce Banner explained what the Cradle is and Cho mentioned that Barton's girlfriend wouldn't even be able to notice the difference which Barton told her that he did not have a girlfriend, not mentioning his wife which only he and Romanoff knew about. Tony Stark organized a party in Avengers Tower to celebrate their victory against HYDRA and obtaining the Scepter. During the Party, Romanoff talked with James Rhodes and bartended for the guests. Romanoff flirted with Bruce Banner, so he would understand that she had feelings for him. Romanoff told Banner about how all her friends are fighters except him as he stays out of the fight as he knows he would win. Before long many of the guests had departed leaving on the Avengers and a few others. As they sat around and drank, Thor invited the Avengers to try and lift Mjølnir. Romanoff watched as the Avengers failed at lifting the hammer and when Banner's turn came, he pretended to turn into Hulk, which none of the others found funny, except Romanoff. Banner invited Romanoff to attempt to lift Mjølnir but as she drank her beer, she politely declined to claim that it was a question that she didn't need answering.

Attack on Avengers Tower
"I'm ready. I'm on a mission." "What mission?" "Peace in our time."

- Ultron and Natasha Romanoff

The party was interrupted when one of Tony Stark's Iron Legion made a surprise appearance, and after admitting that it was the result of Stark's Ultron Program mixed with his research into the scepter, it and several more like it, attacked the group. Romanoff took cover behind the bar and dragged Bruce Banner after her causing him to fall on her, which she reminded him to transform into the Hulk. She then drew a pistol concealed under the bar to help with the fight. She then covered Banner, shooting at the attacker, as the two made their way to a safer sort upstairs. However, the attack was a diversion, and one of the robots made off with the scepter while the Avengers and their friends were engaged in battle. Eventually, all the armors were defeated except for the first Iron Legion who announced his intentions to end the Avengers to achieve his idea of peace and save the world.

Argument
"He's been in everything. Files, surveillance. Probably knows more about us than we know about each other."

- Natasha Romanoff

After the brief fight, the team discussed what had occurred. Romanoff said that Ultron had deleted all their files and that he was in the surveillance. She also said that he maybe knew about them more they knew about each other. Tony Stark admitted his involvement in the creation of Ultron, although he still strongly defended the idea as he believed it was a beneficial plan to save the world. Thor, clearly furious at Stark's recklessness, charged in and grabbed Stark by the throat, but Steve Rogers was able to calm him down. The team later learned that Ultron had sent them a message by murdering Wolfgang von Strucker in his prison cell and leaving the word "peace" written in his blood as a message to the Avengers about his future plans. Together, they worked out that Ultron's next target was Vibranium and he would get that from Ulysses Klaue, an arms dealer and a former associate of von Strucker, in Johannesburg, South Africa.

Battle at the Salvage Yard
"Natasha, I could really use a lullaby." "Well, that's not gonna happen. Not for a while."

- Iron Man and Hawkeye

When reports of robots attacking sources of Vibranium began surfacing, the Avengers raced to a coastal scrapyard in Africa, where they found Ultron, along with Quicksilver and Scarlet Witch, taking the Vibranium. As Iron Man, Captain America and Thor confronted Ultron directly, Black Widow and Hawkeye stayed further back to provide cover. As peaceful negotiations quickly failed, Ultron and the Maximoffs attacked, at the same time Ulysses Klaue sent his mercenaries to attack the Avengers. Black Widow took down many of Klaue's men to protect the rest of the Avengers from attack as they took down the Ultron Sentries. Klaue's men then turned their attention to Hawkeye, who managed to take them down and clear the area. Black Widow was then incapacitated when Wanda Maximoff snuck up behind Widow and inflicted a nightmarish vision upon her. Widow languished in a scene from her past while the fight carried on around her and the enemy made their escape.

Seeing Visions
"You'll break them." "Only the breakable ones. You're made of marble. We'll celebrate after the graduation ceremony." "What if I fail?" "You never fail."

- Natasha Romanoff and Madame B.

In the vision that Scarlet Witch had inflicted upon Romanoff, she woke up and relived experiences in the Red Room Academy the place she had grown up in and was trained to be an assassin. Romanoff walked down the stairs where she came across Madame B., her former trainer, who commented on Romanoff not being breakable and told her that they will celebrate after the graduation ceremony. Romanoff displayed worry of failing, but Madame B. assured her she wouldn't. Romanoff then shot at a few targets followed by a human who she the executed. Romanoff proceeded to relive her experiences during her graduation doing some training where she was holding back so she wouldn't have to go through the ceremony. Madame B. made it clear that the ceremony was necessary in order for Romanoff to take her place in the world, which she believed she didn't have. Romanoff was then sterilized, as to avoid any distractions and focus solely on her missions. As half of the Avengers were suffering from Wanda Maximoff's nightmares, Iron Man was chasing after Hulk, who had also fallen victim to Wanda's powers and was on a rampage. Iron Man requested Romanoff to give Hulk his lullaby method to calm him down, but Hawkeye informed him that she was not going to be able to help him as she was disoriented by the visions. As the Avengers retreated in the Quinjet, Romanoff, along with Steve Rogers, Thor and Bruce Banner remained temporarily scarred by what they saw in the visions.

Retreat
"It's bad right? Nat seems really shaken." "Ultron has these allies, these kids, punks really."

- Laura Barton and Clint Barton

Still suffering from the effects along with the rest of the Avengers, Romanoff was forced to make a quick escape to the Quinjet not being able to give the Hulk his lullaby. Iron Man was then forced to stop the Hulk's current destructive rampage through Johannesburg, as Banner was also affected by Wanda Maximoff's powers. The Avengers become unpopular due to a massive battle between Hulk and Iron Man in his "Hulkbuster" armor in the middle of South Africa; at the same time many of the members were still suffering from the effects of Maximoff's visions. Maria Hill stated that there was no information about Banner's arrest order yet. Knowing they needed to get away and recover, Clint Barton flew the team to his homestead, realizing that no one would be able to find them there.

Clint Barton's Homestead
"How's little Natasha?" "She's... Nathaniel." "Traitor."

- Natasha Romanoff and Laura Barton

The Avengers arrived at Barton's homestead where Barton helped her make her way to the house as she was still haunted by the ghosts of her past. Romanoff's troubles were washed away when she was welcomed by Laura Barton and their two children who consider her family by calling her "Auntie Nat". Romanoff talked with Laura about her pregnancy only to be disappointed when she found out that they baby is a boy and not going to be a "Natasha", but a "Nathaniel".

A Life with Bruce Banner
"I had this dream. The kind that seems normal at the time, but when you wake..." "What did you dream?" "That I was an Avenger. That I was anything more than the assassin they made me."

- Natasha Romanoff and Bruce Banner

As Romanoff waited for Bruce Banner to get out of the shower, she thought about her visions a dream that she had about being an Avenger. When Banner got out, the two talked about their relationship as well as the visions they were shown. Romanoff told Banner about the dream she had where she believed she was an Avenger and not an assassin that the Red Room created. Romanoff suggested that they run away together but it was rejected by Banner as he believed he could not live a normal life like what Barton had both as a threat and not able to have kids. Romanoff told him that she was also not able to have kids due to the Red Room's graduation ceremony where she was sterilized to prevent distractions. Believing herself to be a monster like what Banner considers himself, the two then considered to run away.

Nick Fury's Inspiration
"So stand. Outwit the platinum bastard." "Steve doesn't like that kind of talk." "You know what, Romanoff..."

- Nick Fury, Natasha Romanoff and Steve Rogers

Nick Fury also arrived at the farm and spoke with the group at length about stopping Ultron, mentioning his omnipresence. While Tony Stark volunteered to go to Norway to find out who changed nuclear codes Ultron was planning to obtain. While they listened, Romanoff was brought a drawing of a butterfly by Lila Barton. Fury went on to inspire the Avengers who had been defeated by Ultron and called Ultron a platinum bastard causing Romanoff to continue a running joke between the Avengers about Steve Rogers telling Tony Stark to watch his language. While trying to think where Ultron would be, Banner figured out he wanted to evolve by using the cradle. Romanoff, Barton, and Rogers got ready to leave for Seoul where they believed Ultron would be as he needed to use the cradle.

Battle of Seoul
"I'm always picking after you, boys."

- Black Widow

After Banner made the observation that Ultron was trying to evolve, the remaining Avengers split into two groups, with Black Widow joining Captain America and Hawkeye in a bid to stop Ultron obtaining the Cradle in South Korea. The trio raced for their objective and found that Ultron's plan to create a new android body for itself was already well underway, but the Avengers' arrival caused it to grab the body and flee. Hawkeye located Ultron escaping in a truck trailer in heavy traffic, and when a window of opportunity presented itself, Black Widow dropped to the streets on a motorcycle to pursue it herself. Black Widow then picked up Captain America's shield, which he dropped prior to being shot by Ultron. Retrievin the shield, she sarcastically claimed that she was always picking up after the them. She then followed the directions Barton gave her until she got to Captain America's location so she could assist him. As she made her way, she noticed Captain America's Shield on the road and picked it up. She eventually made her way to their location where Ultron was beating Captain America who she rescued by threw him his shield. As a response, Ultron Sentries started to shoot at her. Black Widow then boarded the truck and found Ultron's second body. Unbeknownst to her, Ultron Sentries pursued the truck she infiltrated and lifted it up to a point in which it became airborne so they could retrieve the cradle. Romanoff soon realized that what had transpired, and reported her status to Barton as an incentive for him not to shoot as she was inside the vehicle with the cradle. Shocked, Barton asked how she wanted him to retrieve the object, to which she replied that he shouldn't have asked, but she was successful in delivering the dormant android to Hawkeye. However, whilst entering the Quinjet, she was knocked out and taken captive by Ultron.

Ultron's Plans Revealed
"I wasn't sure you'd wake up. I hoped you would. I wanted to show you... I don't... have anyone else."

- Ultron to Romanoff

When she awoke, Romanoff found that she had been transported back to HYDRA Research Base in Sokovia, where Ultron made a show of demonstrating his latest upgrade to her as a means of intimidating her. She awoke the sight of Ultron making repairs to a damaged body of his. He revealed to her his plan, still believing that the Avengers are the problem, before confining her to a cell. Romanoff, watching in horror, watches as Ultron destroys his body after building a new and stronger one. After he left, she turned to use an old Cold War-era communication technique in a bid to expose her location to the Avengers without being detected, but could do little else but sit and wait.

Rescued by Bruce Banner
"You're not going to turn green?" "I've got a compelling reason not to lose my cool." "I adore you. But I need the other guy."

- Black Widow and Bruce Banner

Hawkeye eventually received her signal and revealed it to the rest of the Avengers leading them to fly to Sokovia to defeat Ultron and rescue her. As she sat in her cell, Thor destroyed a wall and he and Bruce Banner entered to find Romanoff. Banner eventually made his way to the cell and freed her by blasting the cell open with Chitauri Gun. While Banner wanted to run away with Romanoff, she knew that she had to stay and fight, so after kissing Banner, she pushed him down a hole causing him to transform into the Hulk. Romanoff then held onto Hulk as he jumped from HYDRA Research Base to the airborne Sokovia. The two made their way to Novi Grad and continued to help the rest of the Avengers fight the fight to stop Ultron.

Joining the Fight
"...And us?" "We fight robots." "Today? We fight robots today? Or is next month better for you?"

- Black Widow, Captain America and Quicksilver

Black Widow regrouped with Captain America at the town hall, where she saw Scarlet Witch, and asked if she was wearing her jacket. Captain America informed her that she was now fighting with them, but that didn't explain the jacket to her. They were then joined by Hawkeye, who gave Black Widow her batons. Captain America told them that fighting the robots was getting the nowhere, as the air was getting thin. Scarlet Witch and Hawkeye left to evacuate civilians, and Black Widow asked Captain America what they were going to do. He told her they fight robots, so she took out her batons, as Quicksilver encountered them and joked about fighting robots another time. Black Widow then proceeded to fight Ultron's army, using her batons to electrocute them. She was later assisted by Captain America, who threw her his shield, which she used to fight.

Reinforcements
"I'm not leaving this rock with one civilian on it." "I didn't say we should leave. There's worse ways to go. Where else am I gonna get a view like this?" "Glad you like the view, Romanoff. It's about to get better."

- Captain America, Black Widow and Nick Fury

When Iron Man told Captain America that his only solution to save the world from Novi Grad being smashed into it was to destroy Novi Grad itself, Captain America refused to entertain the idea. Black Widow, however, tried to persuade Captain America to consider the option as the world's population would logically take precedence over the people of Novi Grad. When Captain America declared he wouldn't leave Novi Grad and its people to face their fate, Black Widow told him that she never intended for them to leave and that they would die with the people of Novi Grad if needed. She reassured herself and Captain America that there are worse ways to die and that at least she'd die seeing a great view. Nick Fury interrupted their conversation by saying that her view was about to get a lot better. Fury revealed his Helicarrier and used it to enact Captain America's plan and evacuate the civilians while War Machine joined the battle. Fury sent out a squad of rescue boats to evacuate the citizens while the Avengers ensured no one was left behind.

Protecting the Key
"Romanoff? You and Banner better not be playing hide the zucchini." "Relax, shellhead. Not all of us can fly."

- Iron Man and Black Widow

Iron Man then came up with a plan to dispose of Novi Grad and called all the Avengers to the city church where the drill was located. Iron Man jokingly told Black Widow that she and Hulk better not be playing "hide the zucchini". Black Widow retorted that she was en route slower since she could not fly as she used a bulldozer to run over Ultron Sentries. The Avengers were tasked with protecting the drill in the church known as the key so that Ultron could not activate it. Ultron unleashed his army of Ultron Sentries upon them in a final offensive. Black Widow and the Avengers put all their force into destroying the seemingly endless horde of Ultron Sentries, with Black Widow using her guns and Bite to destroy many of the robots. After a vicious battle, the Ultron Sentries were eventually pushed back. When Ultron attempted to join the fight in his strongest form, Vision, Iron Man and Thor nearly destroyed him with their combined powers. With the battle almost won, Captain America ordered the team to get to a rescue boat and leave the city before Iron Man and Thor destroyed it. Black Widow went with Hawkeye and confiscated a car to get to the rescue boats. During the drive, they made small talk about Hawkeye renovating his homestead.

Losing Bruce Banner
"Hey, big guy. We did it, the job's finished. Now I need you to turn this bird around, okay? We can't track you in stealth mode, so help me out. I need you to–"

- Black Widow to Hulk

As the battle wound down, Black Widow and Hawkeye turned their attention to evacuating the civilian populace, but soon she received the call to calm Hulk back to his human state. However, the process was interrupted by Ultron, who raked Hulk with gunfire whilst at the controls of the Avengers' own Quinjet, and knocked Black Widow out. Hulk grabbed Black Widow and bore her to safety on a newly arrived Helicarrier, before leaping after Ultron to vent his rage. Black Widow soon learned that Hulk had beaten Ultron in the departing Quinjet and appealed to him through a video link to disengage the plane's stealth technology, stating that it was harder for the Avengers to track him down, but Hulk simply severed the connection. In reality, Hulk wounded up in Sakaar where he became the Grandmaster's champion for two years.

The New Team
"Well, we're not the '." "We've got some hitters." "They're good. They're not a team." "Let's beat 'em into shape."

- Steve Rogers and Natasha Romanoff

With the Ultron Offensive finished, Romanoff returned to the New Avengers Facility with the rest of her teammates. With her plan to run away with Banner having failed, and Banner missing in action, she had nothing else but to remain a superhero. She joined Captain America in co-leading the second incarnation of the Avengers, featuring Scarlet Witch, War Machine, Vision and Falcon.

Attack of Ultimo
"I remember you saying Fury once tasked you with doing a psych evaluation on Tony Stark–" "You had to remind me of that. Keep your guard up."

- Steve Rogers and Natasha Romanoff

HYDRA collected many of the parts of the destroyed Ultron Sentries and took them to an undisclosed location in Eastern Europe, where they used the parts to create the Ultimo and then used it to attack a small village. Romanoff joined the Avengers to an attack on the giant robot and together, they managed to destroy Ultimo.

Attack on the IFID Headquarters
"Looking over your shoulder should become second nature." "Anyone ever tell you you're a little paranoid?" "Not to my face. Why, did you hear something?"

- Black Widow and Falcon

Black Widow was on a mission in Lagos with Captain America, Scarlet Witch, and Falcon, where they were waiting to ambush Crossbones. Black Widow was sitting at a cafè with Scarlet Witch, observing the area. When Redwing scanned a garbage truck, it was revealed to be at maximum capacity; Black Widow realized that the truck was a battering ram. The team then moved out to the IFID Headquarters where the truck had gone to. Crossbones, having retrieved the biological weapon, escaped the building with his henchmen. Black Widow gave chase on a motorcycle. She defeated Crossbones' agents with relative ease, but was grabbed by Crossbones himself, her Bite ineffective against his armored suit. Crossbones, claiming that his allegiance was no longer to HYDRA, threw Black Widow into a truck containing two of his agents, tossing a grenade inside and closing the roof. Black Widow incapacitated the agents and escaped the truck when the grenade blew. Crossbones gave the chemical his agents, ordering them to split up. This prompted the Avengers to chase them around Lagos. While Captain America fought Crossbones, Black Widow and Falcon pursued his agents. Black Widow reached them and held them at gunpoint; however, one threatened to drop the chemical. Black Widow killed one of them and the Redwing drone killed the other. Black Widow caught the vial before it hit the ground, thanking Falcon as she left the area. Though Falcon insisted that she thank the drone, Black Widow refused. The battle ended with a blast accidentally caused by Scarlet Witch, which killed several civilians.

Sokovia Accords
"If we have one hand on the wheel that can still steer." "Aren't you the same woman who told the government to kiss her ass a few years ago?" "I'm just... I'm reading the terrain. We have made some very public mistakes."

- Natasha Romanoff and Sam Wilson

In the wake of their mission in Lagos, the Avengers were presented summoned to a meeting by Thaddeus Ross, who proposed the Sokovia Accords, which would put them under the direct command of a panel of the United Nations. Ross explained while, their were many who were grateful for the heroic actions of the Avengers, some deemed the members of the organization dangerous and believed the Accords would establish sanctions and oversight of the group. Ross proceeded with video footages of the Battle of New York, Battle at the Triskelion, Battle of Sokovia, and the Attack on the IFID Headquarters, as well as the serious amount of destruction and chaos induced by individuals such as Loki, Ultron, the terrorist organization HYDRA, and the former HYDRA agent Crossbones to show them why many individuals around the world deem the Avengers as vigilantes. After the meeting concluded with Ross, the Avengers reunited at the New Avengers Facility where Tony Stark discussed his position on the Sokovia Accords. Much to the shock of her comrades, Romanoff agreed with Tony Stark and was willing to agree to the terms of the Accords, as she firmly believed that the Avengers as a group made mistakes in the past that they need to amend. She then called Clint Barton and asked if he would sign the Accords, but he claimed he had retired rather than sign.

Peggy Carter's Funeral
"I'm sorry, Nat. I can't sign it." "I know." "Well then what are you doing here?" "I didn't want you to be alone."

- Steve Rogers and Natasha Romanoff

On her way to Vienna, where the Accords would be amended, she stopped at Saint Luke's Cathedral, where Steve Rogers had attended the funeral of Peggy Carter. After everyone else left, Rogers stayed behind alone in the church. Romanoff approached him and listened as Steve claimed how he initially assumed that everyone he knew was deceased after he awoke from the ice, but later found that Peggy was still alive. Romanoff condoled him and said that Carter had his back. He asked her who else had signed the Accords, so she replied that Stark, James Rhodes and Vision had all signed. She asked Rogers if he would reconsider his decision to not sign the Accords, saying that the Avengers should stay together regardless of how. He, as she expected, still refused and she admitted she was there as a friend to support him as he mourned the loss of Carter.

Vienna Conference
"I know how much Barnes means to you. I really do. Stay at home. You'll only make this worse for all of us. Please." "Are you saying you'll arrest me?" "No. Someone will if you interfere."

- Natasha Romanoff and Steve Rogers

In the conference at Vienna, Romanoff met T'Challa, who thanked her for supporting the Sokovia Accords. She also met his father, T'Chaka; to him, she gave her condolences for the death of the Wakandan citizens in Lagos. During the conference, a bomb was activated, killing T'Chaka. The authorities suspected that Bucky Barnes was responsible for the bombing from security tapes showing the man responsible. Outside the building, Romanoff apologized for T'Challa's loss and promised him that the task force would catch Barnes, but T'Challa said that he would kill Barnes himself. Steve Rogers called her and asked if she was fine and Romanoff responded positively, asking Rogers to stay out of the case with Barnes, or he might make things worse. However, Rogers insisted that he should be the one who to bring Barnes in since he would not die by trying it. He hung up the phone, and Romanoff knew he went to defend Barnes.

Winter Soldier's Escape
"We're seriously understaffed." "Oh, yeah. It would be great if we have a Hulk right about now. Any shot?" "Do you really think he would be on our side?"

- Natasha Romanoff and Tony Stark

Steve Rogers, Sam Wilson, T'Challa and Bucky Barnes were captured by the the Joint Counter Terrorist Centre, and were brought to the agency headquarter in Berlin. There, Romanoff told Rogers that what he had done had made things worse. In a meeting hall, Romanoff, Rogers, Wilson, Stark, and Sharon Carter watched Bucky's interrogation by Theo Broussard. However, Rogers began to suspect the psychiatrist was involved somehow with the setup of Barnes. During Barnes' psychological assessment, a power failure occurred. Barnes freed himself and tried to escape; however, Romanoff, Tony Stark and Sharon Carter engaged him. After which Stark and Carter were subdued by the Winter Soldier, Romanoff engaged him personally. Romanoff was strangled by Barnes. As he attempted to finally kill his enemy once and for all, Romanoff asked if he could at least recognize her from their last encounter during the Battle of Washington, D.C. until T'Challa saved her in the nick of time. However, Barnes escaped, but she and Stark knew Barnes was most likely with Rogers, who, along with Wilson, had also escaped custody. Thaddeus Ross gave Stark thirty-six hours to bring them in. Stark asked Romanoff if Hulk could assist them, but Romanoff knew that even if he was here, he would probably not be on their side. To get the fugitives in time, Romanoff approached T'Challa to ask for his help, promising she would help him find Barnes, despite engaging in a brief confrontation with Ayo, who initially demanded her to move away from T'Challa, but was dismissed by her King, who explained that Romanoff was an ally.

Clash of the Avengers
"You know what's about to happen. Do you really wanna punch your way out of this?"

- Black Widow to Captain America

With a team assembled, Black Widow joined Iron Man's team as they arrived at and evacuated the Flughafen Leipzig-Halle airport. When Captain America headed for a helicopter, he was stopped by Iron Man, and then surrounded by his team. Black Widow approached and asked Captain America to think about what was going to happen, and if he wanted it to turn into violence, rather than surrendering. However, Captain America's team then ambushed them, and they began to clash. Black Widow found herself fighting against Ant-Man, who was hesitant to hurt her, which she assured him not to stress about as he didn't stand a chance against her. Black Widow then attacked Ant-Man and gained the upper hand in their fight; however, he suddenly shrunk down and threw her to the ground and began to pin her arm. As a response, she used her bite to knock him away, freeing herself. Joining War Machine and Black Panther who were fighting Captain America, Ant-Man returned, who enlarged a truck that Captain America threw, with a Pym Particles Disks, towards the three, causing an explosion. Black Widow was able to evade the explosion, but was still knocked to the ground. Becoming frustrated by their opponents refusal to surrender, Black Widow checked back with Iron Man to ask if this was all apart of the plan, for which he claimed they were only going easy on them, causing them to now going to change up their approach to be more aggressive.

Fighting Former Comrades
"You're not going to stop." "You know I can't." "I'm gonna regret this."

- Black Widow and Captain America

When Captain America's team were stopped by Vision, the rest of Iron Man's team regrouped, Black Widow being carried in by Iron Man. The two teams then stood before each other, and when the opposing team began to approach, Black Widow sarcastically and exhaustedly stated that it was going to end well. They then followed in moving forward so that they were both then charging at each other at full force. As the two sides collided together, a battle erupted with Tony's team fighting Steve's team so as to prevent them from escaping to Siberia. When the collided, Black Widow found herself fighting Ant-Man again, dodging his attacks and kicking him when he returned to regular size, thus defeating him. She then threw his whole body to the ground, concluding their fight. Black Widow then moved on and came into contact with Hawkeye, and engaged in a fierce fight with him. The two used their combat skills and weapons to fight each other, until Hawkeye threw her to the ground. He then pinned her on the ground, and the fight was paused when she asked whether they were still best friends in spite of the current conflict, which he jokingly assured depending on how hard she hit him. At that moment, Black Widow then got the upper hand, wrapping her legs around Hawkeye and threw him aside, due to him holding back. When she then went to kick him in the face to finish him, she was suddenly immobilized by Scarlet Witch, saving Hawkeye. Unable to fend off Scarlet Witch's abilities, Black Widow was then launched into a luggage vehicle and was knocked out. After coming to, Black Widow climbed on top of a jet bridge, where she witnessed the fight continue, to her displeasure. No longer wanting to participate in the fight with those she cared about, she made her way to the hangar to guard the Quinjet, as it was the only way of escape. Eventually, Captain America and Winter Soldier made it to the hangar, where they were stopped by Black Widow. Knowing Steve, she knew that he would never surrender, and that there was no point in fighting them, so she decided to let them go. However, Black Panther then appeared behind them and was about to apprehend them, when she used her Bite to hold him back, tasering him. Captain America and Winter Soldier then made their way onboard the Quinjet, as Black Widow continued to stall Black Panther, hitting him with her Taser Disks whenever he broke free of them. However, he was able to get past her, but it was too late, as they had escaped in the Quinjet, leaving the airport. She told Black Panther that she would help him find them, not capture them, seeing a difference in that.

On the Run
"T'Challa told Ross what you did, so, they're coming for you." "I'm not the one who needs to watch their back."

- Tony Stark and Natasha Romanoff

Moments before the end of the fight at the airport, James Rhodes crashed on the ground due to Vision's misfire. They all headed to Columbia University Medical Center, where Rhodes was treated, and Romanoff met up with Tony Stark, and the two went to talk privately. Stark informed her on Rhodes' current state, which she then addressed how Steve Rogers wasn't going to stop, meaning what happened to Rhodes was a best case scenario. However, Stark called Romanoff out for letting Rogers and Bucky Barnes go, which she defended with saying that they approach the whole incident wrong. Stark then began to insult Romanoff, calling upon her former days of being double agent. Romanoff then called Stark out for letting his ego cloud him. Stark then told her that T'Challa had told Thaddeus Ross of her betrayal, giving her a halfhearted warning that the government would come to arrest her. However, Romanoff stated that she wasn't the one that needed to watch her back, but rather Stark, due to the loss of allies his created due to how he had chosen to act during the whole incident, not trying to keep his friends together. Romanoff then left Stark, and went on the run.

Months later from going on the run, Romanoff joined up with Rogers and Wilson. Romanoff, Wilson and Rogers were shortly afterwards met with by Nick Fury. After dying her hair blonde, Romanoff used her KGB contacts to track down a terrorist organization supplied with Chitauri fueled weapons in Syria. Infiltrating the terrorists, Rogers, Wilson, and Romanoff disabled the weapons and then left for Lebanon.

Attack on Vision
"We don't want to kill you. But we will."

- Black Widow to Corvus Glaive and Proxima Midnight

Nearly two years after the Avengers Civil War, Black Widow, Steve Rogers, and Falcon received a call from Bruce Banner, who warned them about the threat of Thanos as well as the fact that Proxima Midnight and Corvus Glaive were hunting the Mind Stone. The three headed down to Edinburgh, Scotland to protect Vision from the Black Order. The three arrived just in time and fended off the Black Order members with great ease. While Captain America appeared behind a passing subway to distract Midnight, who attempted to finally finish off Scarlet Witch and Vision, Falcon immediately attacked her, kicking her into a cafe inside the train station. Black Widow arrived moments later to assist in the fight. She appeared behind Corvus Glaive, who was attacked by Falcon, catching him by surprise and she managed to severely injure him using Proxima Midnight's spear. After which Falcon arrived and subdued Proxima Midnight, who was dueling both Rogers and Black Widow at the same time, Black Widow watched as he held Midnight and Glaive at gunpoint. Black Widow then claimed that the Avengers did not want to kill them but they would, Midnight taunted Black Widow that they will never get the chance again before retreating to their Q-Ship. They then decided to head back to the New Avengers Facility to try to help Vision, who was also severely injured.

Reuniting with Bruce Banner
"Hi, Bruce." "Nat."

- Black Widow and Bruce Banner

Arriving at New Avengers Facility, Black Widow and the rest were greeted warmly by James Rhodes. Thaddeus Ross, present at the compound via a holographic video call, ordered Rhodes to arrest her, Steve Rogers, Sam Wilson, and Wanda Maximoff, but he disobeyed the order, cutting off the call. As Rhodes welcome them back, Bruce Banner emerged, having been missing for over two years. Black Widow greeted Banner while Wilson commented that the meeting was awkward. Banner then warned the Avengers about Thanos' threat, informing them that Thanos recently obtained both the Power and Space Stone during the Massacre of the Xandarians and the Attack on the Statesman, as well as the fact that Thanos has an enormous army ready to invade Earth. When asked about the others, Romanoff revealed to Banner that Clint Barton and Scott Lang were both on house arrests due to their involvement in the Avengers Civil War. Romanoff then listened as Vision suggested that he would sacrifice himself so as to destroy the Infinity Stone within him, only for Rogers and Maximoff to protest his statement. Vision instead reminded that Rogers was willing to sacrifice his life. Banner related back to Tony Stark's creation of J.A.R.V.I.S. and Ultron, suggesting that they could remove the stone imbedded within Vision without killing him. Rogers then claims to know one place capable of doing that, Wakanda.

Arrival at Wakanda
"How we looking?" "You will have my King's Guard, the Border Tribe, the Dora Milaje, and..." "A semi-stable, 100-year-old man."

- Black Widow, T'Challa and Winter Soldier

Romanoff and the Avengers arrived to the Golden City in Wakanda where they were greeted by T'Challa and the Dora Milaje. Rogers also reunited with Bucky Barnes, who had recently been cured of his HYDRA programming. The Avengers then met Shuri, who explained how she planned on removing the stone from Vision.

Battle of Wakanda
"Where's your other friend?" "You will pay for his life with yours. Thanos will have that Stone."

- Black Widow and Proxima Midnight

While the Avengers listened to Shuri's method, Thanos' army attempted to breach Wakanda's shield, but was repulsed, forcing them to land outside the shield perimeter. Assembling the Avengers and the Wakandan armed forces to oppose them, Black Widow joined Steve Rogers and T'Challa in talking to Proxima Midnight and Cull Obsidian at the shield boundary. Black Widow inquired where Corvus Glaive was; Midnight intimated that he was dead. Midnight and Obsidian then initiated the Battle of Wakanda as they proceeded to released their army of Outriders. A great battle commenced after which T'Challa ordered the Dora Milaje to open up their defenses. The Black Order and Outriders swarmed the battlefield, attacking the Avengers. The Avengers became overwhelmed by the Outriders. However, the team and the Wakanda army were saved by the arrival of Rocket Raccoon, Groot, and Thor, who recently obtained his new weapon, Stormbreaker, from Nidavellir. The battle continued with the Avengers gaining the upper hand against Thanos' army. After facing off against the Outriders, Scarlet Witch was subdued by Midnight and was about to kill her, when Black Widow and Okoye intervened, preparing to face off against the alien warrior. Black Widow managed to fend off Midnight's attacks and then proceeded to fight back, outnumbering her. However, they were soon overwhelmed by Midnight's strength, and Black Widow was knocked out whilst Okoye was thrown to the ground. Midnight then approached a subdued Black Widow and put a blade to her. When Midnight went to finish off Black Widow, only barely holding her back, Scarlet Witch used her powers to restrain Midnight and launch her into the path of one of Thanos' war machines, killing her, resulting in some of her blue blood being splattered across her face. Black Widow, lying on the floor, commented that Midnight's blood was gross before getting up and continuing to fight against Thanos' army. The Avengers then located Vision in a forest who prompted Scarlet Witch to destroy the Mind Stone within him while Black Widow and the Avengers awaited Thanos' arrival. Once Thanos finally arrived on Earth, Black Widow tried to stop him from obtaining the Mind Stone, but found that she and her allies were hopelessly outmatched by Thanos' use of the Infinity Gauntlet. While War Machine, Black Panther, Okoye, Bruce Banner, Falcon, and Winter Soldier were blasted away by the Power and Space Stones, Black Widow was subdued by Thanos who used the Reality Stone to form stone pillars to trap her. As Thanos united the six Infinity Stones, however, Thor impaled him with the Stormbreaker. Moments later, however, Thanos snapped his fingers and wiped out half of the life in the universe. Despite being weakened by a fatal blow from Thor's Stormbreaker, Thanos transported to the Garden, leaving Black Widow as one of the survivors of the genocide. She had freed herself from Thanos' prison as she and her remaining allies could do nothing but accept their defeat.

Meeting Captain Marvel
"We don't even know what this is." "Fury did. You tell me the second you get a signal. I wanna know who's on the other end of that thing."

- Bruce Banner and Natasha Romanoff

Following the Battle of Wakanda, Romanoff, along with Steve Rogers, James Rhodes and Bruce Banner, returned to the New Avengers Facility. The Avengers sought out to hunt Thanos, using deep-space scans and satellites, only to have no results. Having discovered the Transmitter Pager in Atlanta that Nick Fury had activated prior to his death, the Avengers bypassed the pager's battery in order for it to continue to send out its signal. As Rogers and Romanoff were witnessing reports on the aftermath of the Snap, Rhodes, who was monitoring the pager, informed the pair and Banner that the pager had stopped transmitting the signal. Rogers requested that they reboot the pager and resend the signal, only for Banner to respond that they had no idea what the signal was for. As Romanoff explained that Fury knew whom the signal was for and that she wanted to know who it was as well, she came face to face with Captain Marvel herself, who demanded to know where Fury was.

Ambush on Thanos
"This is going to work, Steve." "I know it will. Because I don't know what I'm going to do if it doesn't."

- Black Widow and Steve Rogers

Twenty-three days after the Snap, Captain Marvel returned from her mission to find Tony Stark, carrying Benatar towards the New Avengers Facility. The Avengers, along with Pepper Potts stood outside and witnessed Stark exit the ship, along with Nebula. They all then gathered inside where Romanoff informed Danvers and Stark of the Snap and the effects that have occurred since. As they continued to talk about Thanos, Stark began to get angry because of the encounter he had with Thanos alone. However, due to being in a weak state, he collapsed so Bruce Banner tended to him while the others waited. When Danvers decided to go out and find Thanos on her own, Romanoff stopped her, informing her that they work as a team. Nebula then joined the conversation and informed them of Thanos' location, the Garden — a place that Thanos planned to retreat to after the Snap, where Rocket Raccoon told them of a power surge that occurred two days ago. They then began to discuss going after Thanos, where they planned to retrieve the Infinity Stones and bring everyone back, something that Romanoff felt they owed to those who were gone because of the Snap. As they continued to discuss the plan, Danvers told them that they would be successful because they had her this time, causing an annoyed War Machine to retort back at her. As she claimed that there were many other planets in the universe which did not have a team like the Avengers, Thor, who had been silent for all of this, got up, and summoned Stormbreaker to prove she was worthy. Danvers did not blink and Thor exclaimed his fondness for her. With all the Avengers on board with the plan, they all suited up and boarded the Benatar. A team of Steve Rogers, Black Widow, Thor, Captain Marvel, Nebula, Banner, Rocket and War Machine all made their way to the Garden by making a jump through space. Rocket asked them not to throw up on his ship, having learned that they have never been to space, with the exception of Nebula. When they arrived at the planet, Captain Marvel exited the ship to do recon while the others waited. Black Widow saw Rogers look at his compass, and reassured him that the plan was going to work, to which he responded by saying he wouldn't know what to do if it didn't. Captain Marvel then returned and updated the Avengers that it was only just Thanos on the planet. They then began their ambush, with Captain Marvel bursting into his home, placing him in a headlock. Bruce Banner in the Iron Man Armor: Mark XLVIII quickly joined her, restraining the Infinity Gauntlet, with War Machine holding Thanos' other arm. Thor then arrived and sliced off Thanos' left hand with Stormbreaker, releasing the Gauntlet and causing great pain to the Titan. Rogers, Black Widow, and Rocket Raccoon then entered the hut, and they were all shocked when they saw that the stones were no longer in the gauntlet. Under interrogation, Thanos revealed that his most recent usage of the Infinity Stones had been to destroy them, ensuring that he could not be tempted to use them again and that the Snap could not be undone. The Avengers initially believed Thanos to be lying, so Black Widow demanded the location of the Infinity Stones, but Thanos assured them they were gone and that he was nearly killed because of it. Nebula addressed that while her adoptive father was many things, he was not a liar. Thor then cut off Thanos' head, killing him. He then left, leaving a feeling of despair amongst them all.

Keeping her Family Together
"This channel is always active, so if anything goes sideways, anyone's making trouble where they shouldn't... comes through me."

- Natasha Romanoff to the Avengers

With the Mad Titan’s victory seemingly final, the Avengers spent the next five years moving on: Tony Stark starts a family; Steve Rogers holds support group meetings; Thor rebuilds Asgard on Earth; and Bruce Banner merges himself with the Hulk. However, being alone all her life until she was a part of the Avengers, which she saw as her family, Romanoff continued the team, with Carol Danvers, Rocket Raccoon, Nebula, James Rhodes, and Okoye acting as members, operating on a bigger scale than they used to, helping reform the world back to normal after the Snap. In 2023, Romanoff held a meeting with the Avengers, who were all at different locations, where she was provided with updates on what they were each doing. When the meeting concluded, Romanoff reminded them that the channel would always be open if there was ever a problem. Rhodes stayed on the channel, telling her that he was in Mexico, still following Barton, telling her that after witnessing the scene he had left, he was not sure if he even wanted to find Barton. However, Romanoff asked if he could keep looking anyway. When he left, Romanoff began to cry over the thought of her best friend until Rogers entered the room. Rogers, noticing his friend was in distress, attempted to comfort her, but she stopped him from telling her to look on the bright side by jokingly threatening to hit him with her sandwich. When Rogers sat down, the two began to discuss moving on, something Rogers had been telling others, but was not reciprocated by them. Romanoff pointed out that if she didn't lead the Avengers, no one would, something Rogers believed might be fine. However, Romanoff told him that she used to have nothing in her life until she became an Avenger, giving her a family and making her better. She then addressed that even though people are gone, she was still trying to be better, which Rogers then stated that they both needed to get a life.

Scott Lang's Return
"Thanos happened, and I got stuck in there." "I'm sorry, that must have been a very long five years." "Yeah, but that's just it, it wasn't. For me it was five hours."

- Scott Lang and Natasha Romanoff

Suddenly, an alert appeared for the front entrance camera, so Romanoff opened it revealing Scott Lang to be standing outside. They then let him inside, where he asked them if they studied, which Romanoff said she was, only for conversation. Lang then told them about how he got trapped in the Quantum Realm five years ago due to the Snap. Lang then revealed that for him, it was actually five hours in the Quantum Realm. Rogers then tried to get Lang to clarify what he was saying, which was that time works differently in the Quantum Realm, but there is no way to navigate it. He proposed the idea to control the Quantum Realm, entering at one point in time and exiting out another. However, none of them knew how to handle this idea, so they decided to visit Tony Stark, who was living a normal life with his family. They drove to his house and sat down with him to discuss Lang's idea, but Stark was opposed to it. Romanoff told Stark that they had to try, but he continued to refuse. Stark then left them when his daughter came out, causing them to leave without his help. Rogers then suggested another brain they could use to help them, Bruce Banner.

Time Travel
"You are kidding, right?" "I have no idea, we're talking about Time Travel here. Either it's all a joke or none of it is."

- Natasha Romanoff and Bruce Banner

The three then met up with Banner in a diner, who explained to Lang his new transformation into a mixture of Banner and the Hulk. They were then interrupted by some kids who wanted a picture with Banner, and when they left, Banner informed them that Time Travel was outside his area of expertise, but Romanoff reminded him that he was able to merge his two personas, something that seemed impossible before. He then agreed to help them, and they returned to the facility to work on navigating the Quantum Realm to ensure time travel. They then began to test time travel, with Lang wearing the Quantum Realm Exploration Suit. When Banner mentioned not wanting something to go wrong and have Lang stuck in the past, Romanoff said he was joking, but Banner was unsure of that, due to the uncertainty of the experiment. Banner set the machine up to send Lang back a week and bring him back in ten seconds. They then activated the machine, which sent Lang into the Quantum Realm, and when they brought him back, he was a child. Banner then tried to fix this error by sending him back, but when he returned he was an old man, followed by a third try which brought Lang back as a baby. Banner then told Romanoff to kill the power on his signal, which successfully returned Lang to his normal age.

Reuniting with Clint Barton
"We've found something... a chance, maybe." "Don't." "Don't what?" "Don't give me hope." "I'm sorry I couldn't give it to you sooner."

- Natasha Romanoff and Clint Barton

After their failed experiment, Stark arrived at the facility having figured a way to perform time travel successfully. He then agreed to help them, and they began to get the Avengers back together. Romanoff went to Tokyo in search for her best friend, Barton, having discovered that is where he was. She made her way to Barton's location, to be confronted with him ruthlessly murdering Yakuza boss Akihiko. When Barton became aware of her presence, he told her that she should not be there, which she replied neither should he. Barton told Romanoff he had a job to do, but she told him that it wouldn't bring his family back. She then revealed their plan to bring everyone back, but he told her to not give him hope, something he had lost which Romanoff wished she could have given him sooner. She then held his hand to comfort him and the two returned to the facility.

Creating a Plan
"Guys, if you pick the right year, there are three stones in New York." "Shut the front door."

- Natsha Romanoff and Bruce Banner

With all the Avengers assembled once again, they began to work on creating the machine as Scott Lang prepared to test it. They finished the machine, but Clint Barton ended up being the one to test it, as Lang was not ready. They all watched as Barton stood on the machine and then went into the Quantum Realm. A few seconds later, he was brought back, and Romanoff checked up on him. After telling her he was fine, he showed her a baseball glove he retrieved, revealing that their experiment had worked. With the means of transportation achieved, the team then began to discuss the Infinity Stones' history. They started with the Aether, watching on as Thor told them about it, but started to get off topic due to him not being in control of his emotions. They then moved onto the Orb, which Rocket Raccoon informed them was on Morag when Peter Quill stole it in 2014. Nebula then told them about the Soul Stone, which Thanos retrieved on Vormir by sacrificing her sister. Romanoff, Tony Stark and Bruce Banner then discussed the Time Stone, which they told her Doctor Strange had, and he lived in New York. Romanoff then realized that in 2012, there were three stones in New York: the Time Stone, the Space Stone and the Mind Stone. With this point being brought up, they were then able to complete their brainstorm for the Time Heist and plan out who was going where. It was later decided amongst the members of the Avengers that Romanoff and Barton would go to Vormir in 2014 to obtain the Soul Stone, along with James Rhodes and Nebula, who were going to Morag to retrieve the Power Stone, Stark, Steve Rogers, Banner and Lang were going to New York in 2012 to retrieve the Space, Mind, and Time Stones, and Thor and Rocket were going to Asgard in 2013 to steal the Reality Stone.

Retrieving the Soul Stone
"Who are you?" "Consider me a guide to you and to all who seek the Soul Stone." "Oh good, you tell us where it is, then we'll be on our way." "Lieblich, if only it were that easy."

- Black Widow and Red Skull

The Avengers all then suited up in their Advanced Tech Suits and made their way to the platform, where Captain America gave them a speech about everything that had led up to that moment and how this was their only opportunity to change what had happened. Bruce Banner then activated the machine, as Black Widow told them she would see them in a minute, and they all were transported to the Quantum Realm, where they each traveled to their designated time. Black Widow, Hawkeye, War Machine and Nebula all successfully arrived in 2014 on Morag, where they enlarged the Benatar and waited for Nebula to lower the space pod. On the desolate planet, Black Widow was seen kicking an Orloni creature who approached her. Hawkeye then asked them to hurry up as their time was limited. Black Widow and Hawkeye then boarded the Benatar and said goodbye to War Machine, who asked them to watch over each other. They then departed Morag and headed to Vormir, to retrieve the Soul Stone, using the coordinates Nebula provided them on the ship. As they traveled to Vormir, the two best friends enjoyed the sight of space travel, laughing with each other, as Hawkeye mentioned that they had gone through so much since being S.H.I.E.L.D. agents years ago, mentioning their mission in Budapest, to which she agreed with. They soon arrived at the planet, which amazed Hawkeye, saying that what they were doing would be awesome if not for the circumstances. They then made their way through the planet, climbing up the mountain, which they found to be exhausting. Black Widow pointed out the physical effort of their mission by stating that Rocket, who she referred to as a raccoon, wouldn't have had to climb a mountain, which Hawkeye stated that technically he was not a raccoon, but she didn't care. When they made it to the top of the mountain, they were greeted by the Red Skull who alarmed them, causing them to draw their weapons at him. Schmidt, who had revealed Black Widow's father's name and Hawkeye's mother's name, informed them that he was a guide for those seeking the Soul Stone, so Black Widow demanded that he show them where it was. However, he informed that it is never that simple. They learned that the stone was at the bottom of the cliff, and that they had to make a sacrifice of what they love for the Soul Stone.

Self-Sacrifice
"Then I guess we both know who it's gotta be." "I guess we do." "I'm starting to think we mean different people here, Natasha." "Last five years, I've been trying to do everything to get to right here, that's all it's been about, bringing everybody back."

- Hawkeye and Black Widow

Upon learning about the price to pay for the Soul Stone, Black Widow and Hawkeye took a moment to let the severity of the situation sink in. Black Widow sat down as she contemplated doing whatever it takes to retrieve the stone, while Hawkeye voiced his disbelief. She then remembered how Nebula told them that Thanos killed Gamora on Vormir, meaning the sacrifice was legitimate. They then repeated what Captain America had said before their mission "whatever it takes", before accepting that one of them needed to sacrifice themselves for the stone. Hawkeye decided that he would make the sacrifice, holding Black Widow's hand to comfort her in their final moments. However, she then reciprocated the same gesture, making him realize that she intended on sacrificing herself. They then argued over which one it should be, neither wanting to willingly let the other die. Black Widow attempted to make her case, saying this is what she had been working towards all these years since the Snap occurred, and that she did not want Hawkeye to die. She also noted that if they did nothing, all victims of the Snap would stay dead. However, Hawkeye told her he should do it, as he saw himself as too far gone, which she assured him that he is more than his worst moments. However, when he told her that she should not try and give him a chance, she responded to the fact that he gave her a second chance when they first met on his kill mission. She also claimed that she did not judge people based upon their worst mistakes in life. They then took a moment to embrace each other's friendship, resting their heads on one another, until Hawkeye took her off guard and threw her down so he could sacrifice himself. He told her to tell his family, when they were brought back, that he loved them. However, Black Widow gained the upper hand and threw him down, deciding to make the sacrifice herself. She then shot him with her bite, causing him to get electrocuted. As she made a run for the cliff, Hawkeye ripped off the Taser Disk, drew his bow, and fired an explosive arrow near her, causing her to be thrown away from the cliff. He then made it for the cliff and jumped off, but Black Widow also jumped and grabbed him, shooting a grapple and attaching it to him, so he wouldn't fall, forcefully sacrificing herself. However, Hawkeye was able to grab onto her, but could not pull her up, without both of them falling. He got mad at her for stopping him from sacrificing himself. She asked him to let her go, knowing that there was no other way, but he couldn't bring himself to do it. He desperately tried to get her to not do it, not letting go of her, as he did not want his best friend to die, but she felt the exact same and forced him to let go. Hawkeye cried as he watched Black Widow fall to her death, helpless to do anything else. With the sacrifice being made, Hawkeye then obtained the Soul Stone.

Remembered by Friends
"You know, I wish there was a way... that I could let her know... that we won. We did it." "She knows."

- Clint Barton and Wanda Maximoff

The Avengers then returned to 2023, having successfully obtained the Infinity Stones, while Clint Barton had returned and silently fell to his knees when asked about Romanoff by Bruce Banner. The others then deduced that she had sacrificed herself, causing their initial celebration to perish. The original Avengers all gathered outside to mourn the loss of their friend, with Tony Stark asking if she had any family they had to inform. Steve Rogers retorted that they were her family, something she had told him earlier.

When Thor questioned why they were acting like she was dead, believing that they could bring her back with the stones, Barton told them that it could not be undone. He then became angry over the death of his best friend, remarking that it should have been him. Banner came to terms with her death, and declared that her death would not be for nothing. The team then began constructing a Nano Gauntlet to control and contain the Infinity Stones.

Banner used the Gauntlet to reverse the Snap, successfully restoring the lives of the individuals who perished five years ago, though Romanoff could not be revived despite Banner's hopes. After Stark's funeral, Barton spoke to Wanda Maximoff beside the lake at the Stark Residence. Barton told her that he wished there was a way for him to let her know that they were successful and her sacrifice meant something. Maximoff comforted him by saying that she knew, as well as Vision.

Personality
"The truth is a matter of circumstance. It's not all things to all people, all the time. Neither am I." "That's a tough way to live." "It's a good way not to die, though."

- Natasha Romanoff and Steve Rogers

The entirety of Romanoff's character is hard to distinguish based on how she lies and tricks people for a living. She was capable of convincingly portraying friendly and flirtatious, timid, vulnerable and scared. For the most part, she was a level-headed, strong-willed and independent woman. Romanoff normally maintained a controlled, almost emotionless persona to keep whatever she was thinking a secret unless she was around people she absolutely trusts. Although she was more than willing to rush into deadly battle and other unnerving missions for S.H.I.E.L.D., she was not completely fearless, as she was visibly frightened of Hulk. However, she was no longer afraid of him due to falling in love with Bruce Banner.

Though a very serious agent, Romanoff was by no means stuffy and has a sarcastic sense of humor, which mostly surfaces when she was with Captain America or Hawkeye, both of whom she was comfortable around. Romanoff was very smart and loyal which was displayed when she made good on the debts she owed Barton and Rogers (saving the former from Loki's mind control and trying to protect the latter during a highway assault). While tough and at times ruthless, she was still a good person and can be quite heroic in her own right. These qualities are usually brought out by her other Avengers, mainly her missions with Steve Rogers. And no matter how injured she was in battle, Romanoff will go out her way to make sure bystanders are out of harm's way (keeping several S.H.I.E.L.D. agents away when Banner was transforming into Hulk, helping Hawkeye evacuate civilians when the Chitauri attacked Manhattan, and risking her life to make sure innocent people weren't shot by the Winter Soldier when he was chasing her). Her close loyalty to both Rogers and Barton was shown in the Avengers Civil War, as she was willing to aid their faction despite being forced to go on the run from the United Nations afterward. As a result of her childhood, she considered the Avengers her family, being desperate to keep them together when the Sokovia Accords were due to be signed and was affected when Tony Stark denounced her as a friend and made it clear he would not help her in the future. She was further shocked and saddened when Barton following the loss of his family became more ruthless and violent when she encountered him in Tokyo.

Romanoff was also very close with Clint Barton's family, especially with his and Laura Barton's only daughter, Lila, being the only member of Avengers who knew of their existence. Romanoff was genuinely affectionate with the child, hugging her the moment they reunited and sweetly commended the little girl on the drawing she made. They originally named their youngest child after Romanoff prior to them discovering that it was, in fact, a boy, thus naming him Nathaniel instead, with Romanoff humorously referring to the unborn child as a "traitor". This was further proven in Vormir where she refused to let Clint sacrifice himself, knowing how much he meant to his family and vice-versa and died instead because she had little to lose.

Romanoff was sterilized as a rite-of-passage for her graduation from the training she underwent in the Red Room under the supervision of Madame B. This event deeply affected her, as she regretfully told Banner of the so-called advantages of the procedure.

Despite her lifestyle of espionage and operating within the shadows, Romanoff's adaptability influenced her opinions on the Sokovia Accords. Realizing the difference between S.H.I.E.L.D. and the Avengers with many of their activities seen in the light of day amongst the public, Romanoff wanted to appease public opinions by signing and also that she didn't want conflict with her close friends and teammates like Barton and Rogers. This care for Captain America eventually caused Romanoff to betray Stark's team and assist their escape so they could clear Barnes' name, eventually becoming a fugitive because of this.

Abilities
"What if I fail?" "You never fail."

- Natasha Romanoff and Madame B.

Natasha Romanoff is one of the most talented spies and lethal assassins in the world, being said by her instructor Madame B. to be the best student in the Red Room, never failing a single test. Both the KGB and S.H.I.E.L.D. considered her as one of their most dangerous operatives. Romanoff is highly skilled in martial arts, armed combat, espionage, infiltration, disguise, manipulation, evasion, hacking, and assassination. Romanoff's extraordinary skill-set has made her a core member of the Avengers. "You are mind-blowingly duplicitous. How do you do it? You just tear things out? You're a triple imposter. I've never seen anything like it. Is there anything real about you?"

- Tony Stark to Natasha Romanoff

"You lie and kill in the service of liars and killers."
 * Master Spy: Romanoff was a dangerous secret agent highly skilled in espionage, stealth, disguise, infiltration, and demolitions. Her talents and years of experience have enabled her to reach a high ranking as a special agent of S.H.I.E.L.D. Romanoff is well versed in internal destabilziation and was soon deemed a threat to global secuirty because of this. She often resorts to seducing men to obtain her goals while working undercover, such as when she posed as an assistant to evaluate Tony Stark for the Avengers Initiative. Romanoff's skills were so legendary that Nick Fury created a Lie Detector that he hoped she could not deceive.
 * Master Martial Artist: Romanoff was one of the best fighters in the world, having been trained from a young age in the Red Room and S.H.I.E.L.D. in her later life as a top operative. During her time in the Red Room, she was seen using her martial arts to defeat a grown man by swinging his head into the corner of a desk, proving how formidable she was even when she was young. She was extremely skilled in the field of martial arts, having mastered arts such as, , , , multiple styles of , , and with her batons.  Romanoff has efficiently taken down many enemies, such as a squadron of armed soldiers after being ambushed in a hotel room , multiple Hammer Industries security guards, Georges Batroc's armed pirates, several members of STRIKE, Chitauri aliens, Ultron Sentries, and Outriders. She was skilled enough to be able to defeat a mind-controlled Hawkeye, maintain the upper hand against Ant-Man, and even hold her own against the much stronger Winter Soldier, though he was able to bring her down in the end. Black Widow also managed to compete with Proxima Midnight alongside Okoye, even managing to disarm her with her baton, holding her off long enough for Wanda to kill her. In addition, she had enough skill to stab Corvus Glaive using Proxima Midnight's Spear.
 * Spear Mastery: Romanoff shows great skill in the use of a spear in close combat, she was seen wielding a Chitauri staff to battle the Chitauri. She was also skillful enough to use Proxima Midnight's spear to almost kill Corvus Glaive. Romanoff also combined her batons into a staff to battle Proxima Midnight, using it to defend and attack simultaneously.
 * Staff Mastery: Romanoff possessed tremendous skill in using a staff, demonstrating her prowess during the Battle of Wakanda to fight against Proxima Midnight.
 * Master Acrobat: Romanoff was highly skilled in incorporating gymnastics and acrobatics into her fighting style as she battles opponents. During her fight within Hammer Industries Headquarters, Romanoff used these skills to defeat the guards. During the Chitauri Invasion, she got to ride a Chitauri Chariot by using her acrobatics to commandeer it.

- Loki to Black Widow

"She's fluent in French, Italian, Russian, Latin."
 * Master Assassin: Romanoff was notorious in the art of assassination, considered to be one of the most dangerous assassins in the world. She was known to have killed many people during her time serving the KGB and S.H.I.E.L.D.. During her time in the Red Room, Romanoff was trained to kill without remorse and was seen demonstrating her sharpshooting skills on a live captive, showing no emotion as she killed him.
 * Master Marksman: Young_Widow.png Romanoff was a very accurate marksman skilled in sharpshooting. During the Battle of Washington, D.C., Romanoff would have shot the Winter Soldier through his eye if he had not been wearing his protective goggles. She had also been trained from a young age in the art of sharpshooting, as she was seen practicing on targets, making several headshots in quick succession.

- Tony Stark "The person who wrote this is slightly smarter than me. Slightly."
 * Multilingualism: Romanoff was fluent in Latin, Russian, English, French, German, Chinese, Italian, and various other languages.
 * Gifted Intellect: Romanoff's intellect seemingly put her on par with Steve Rogers and Clint Barton. She possessed the ability to quickly process multiple information streams (e.g., threat assessment) and rapidly respond to changing tactical situations. Romanoff also possessed a vast knowledge of human anatomy, displayed by her often using joint locks and hitting enemies in the weakest parts of their bodies; for example the crotch, stomach, armpits, and the head. Her prodigious skill from her years of training also allow her to predict her opponents' plans of attack as well, such as when she was able to save herself, Captain America, and Falcon from being shot by the Winter Soldier by predicting the order in which he would shoot at them through the roof of their car. Victoria Hand has even stated that Romanoff does not usually require extraction teams on S.H.I.E.L.D. missions and is resourceful enough to make her own escape.
 * Master Interrogator: Romanoff was able to trick Loki into telling her about his plan to use Hulk against the Helicarrier to bust him out of his cell. She was able to do a "reverse interrogation"; while she seemed to be in danger, in truth, she was getting all the information she wanted to know.

- Natasha Romanoff to Steve Rogers


 * Expert Hacker: Romanoff could hack into most computer systems without tripping any firewalls or security. She used this talent to hack into Hammer Industries mainframe and help James Rhodes regain control of the War Machine Armor and enabled him to help Stark fight the rest of the attacking Hammer drones, and again to access the location of Camp Lehigh from the USB Steve Rogers received from Nick Fury.
 * Pilot: Romanoff was a skilled pilot, capable of flying a Quinjet with ease.

Weapons

 * Black Widow's Bite: Electroshock weapon that can deliver powerful electrical discharges from two bracelets worn by Romanoff. When the Chitauri forces invaded Earth during the Battle of New York, she used the Widow's Bite to electrocute several enemy troops by jamming her charged fists into them. Romanoff used the Widow's Bite to take out a pirate guarding the Lemurian Star ship's engine room. Romanoff acquired a more powerful version of the Black Widow's Bite from Tony Stark, which causes the piping in her suit to light up and glow. She made use of her bite during the Avengers Civil War. She zapped Ant-Man with her bite, sending her miniaturized opponent flying away, and later used the bite to cover the escape of Captain America and the Winter Soldier by using Taser Disks fired from her bite to hold off Black Panther.
 * Black Widow's Batons: Electroshock weapons that can deliver powerful electrical shocks to incapacitate her targets. Romanoff used the batons to take down dozens of Ultron Sentries with a combination of her weapons and martial arts mastery and later employed these weapons during the Avengers Civil War, although not charged with electricity. She once again utilized her batons to battle the Black Order and the Outriders and was able to combine them to form a staff; she kept these batons in a holster worn on her back.
 * Taser Disks: Romanoff used two Taser Disks aimed at the feet of one the security guards at Hammer Industries Headquarters, paralyzing his legs to temporarily disable him.
 * Garrote: Romanoff stored a garrote within her Bite, which she utilized to aid in her escape from a nightclub in Moscow by using it to strangle and then throw an opponent over a railing and down a stairwell. Romanoff then employed it again while infiltrating Hammer Industries Headquarters, using it to deflect the blows of one of the security guards at Hammer Industries Headquarters, and later to strangle him until he lost consciousness. During an attempted ambush on the Winter Soldier, Romanoff jumped onto his shoulder from behind and attempted to strangle him with her garrote, only to be thrown off.
 * : During her training with the Red Room, Romanoff trained with this gun, shooting it in quick succession while alternating her shooting arm, and being forced to use it against living targets.
 * : Romanoff's original weapon of choice. She carried it when she went to stop Ivan Vanko at Hammer Industries Headquarters, but chose not to use it against the security guards inside the complex.
 * : Romanoff took a Heckler & Koch USP Compact from one of the guards at Hammer Industries Headquarters. She dual-wielded it along with her Walther PPK/S when she stormed inside the room where Ivan Vanko was supposed to be, only to find it empty.
 * : Romanoff replaced the Walther PPK/S for a pair of Glock 26 handguns, continuing to use them for the rest of her life as her weapon of choice. She had one of them concealed in the abandoned house in India where she staged a meeting with Bruce Banner, and then used both her firearms shortly after to fight the Chitauri army during the Battle of New York. Romanoff continued to used them during her missions with S.H.I.E.L.D., killing some of Georges Batroc's pirates during a mission to rescue the Lemurian Star, and later during a shootout against the Winter Soldier in Washington, D.C., managing to shoot and damage his goggles and forcing the Soldier to remove them. During the Battle of Sokovia, Romanoff resorted to the use of her handguns to shoot point-blank some of the Ultron Sentries. She still carried them during the Clash of the Avengers, but she kept them holstered so as not to harm her former allies. During the Time Heist, Romanoff carried them on her mission to Vormir, where she pulled it out after being altered by Red Skull, although she never used it.
 * : The Glock 19 pistol is the standard sidearm carried by STRIKE. Romanoff was able to obtain one of them when she posed as Councilwoman Hawley inside the Triskelion, using it to threaten Alexander Pierce. She also retrieved one of these guns hidden beneath the bar of Avengers Tower in order to shoot at the Iron Legion drones hijacked by Ultron. She used it to great effect, shooting one Iron Legion drone in the head while running up the stairs with Bruce Banner for cover, and continued to fire at another before Steve Rogers destroyed it with his shield.
 * : Romanoff managed to obtain this gun from one of the mercenaries working for Crossbones who attacked the Institute for Infectious Diseases in Lagos. When Romanoff grabbed the gun, one of the mercenaries threatened to release the biological weapon they had just stolen. She used it to quickly kill one of the mercenaries while Redwing killed the other, managing to secure the biological weapon.
 * ' with a ': A fully automatic carbine and the standard weapon used by S.H.I.E.L.D. Strike Team members, outfitted with a grenade launcher. Romanoff took the weapon that the Winter Soldier had been using and shot a grenade at him, forcing him to make his escape before he could kill Steve Rogers in Washington, D.C.
 * Chitauri Staff: Romanoff took one of the staves used by the Chitauri army when they invaded New York City and effectively used it against them as both a ranged and melee weapon.
 * Scepter: Romanoff used Loki's Scepter to shut down the Tesseract portal device as Erik Selvig instructed.
 * Proxima Midnight's Spear: Romanoff used this during the Attack on Vision against Corvus Glaive.

Uniform
"What are you wearing?"

- Happy Hogan to Black Widow


 * S.H.I.E.L.D. Uniform: Black Widow's first uniform was a bluish-black catsuit. It zipped up the front and had fingerless gloves with a S.H.I.E.L.D. logo on the shoulders. It had two belts, one of which had a red hourglass symbol on it and the other serving as a utility belt. It also had a thigh holster.
 * Tactical Uniform: Her second uniform was a slightly modified version of her earlier one, made of smooth gray fabric. The red hourglass was brighter and the belts were slightly different. The only major difference was the inclusion of built in wrist tasers.
 * Stealth Uniform: Her third uniform was worn while working on S.H.I.E.L.D. missions with Captain America. Her uniform became black with gray webbing, a S.H.I.E.L.D. logo on her right shoulder and her trademark red hourglass over her stomach. It also features her Widow's Bite, a utility belt, and two thigh holsters.
 * Avengers Uniform: The fourth uniform worn by Black Widow was similar to her second. She wore a black suit with black padding at the shoulders, knees, and elbows. Her suit also contained a more powerful version of her Black Widow's Bite which when used caused piping on the suit to light up. She also wore a thigh-holster on her left leg.
 * Second Avengers Uniform: The fifth uniform is much sleeker then the previous version. Her suit is not leather, but rather a more tactical stretch Kevlar instead of the usually printed stretch fabrics used, although there is some of that in strategic places for mobility. Her boots have kinetic rebounding soles that add bounce to jumps. The suit incorporates her usual red hourglass and Widow's Bites with long-range upgrades.
 * Black and Gray Uniform: To be added
 * Winter Uniform: To be added
 * Fugitive Uniform: The eighth uniform consisted of a black suit with a green bulletproof vest worn over it. Having padding on its knees and elbows to provide protection and additional striking capabilities. The uniform had her Widow's Bites included and had tall, heeled boots. The uniform has a thigh holster on her leg and a holster for her batons on her back.


 * Third Avengers Uniform: The ninth uniform was a black suit with gray detailing on the front, as well as shoulder and knee armor. It has a holster on the back for her batons, her Widow's Bites, and a belt with two thigh holsters.
 * Advanced Tech Suit: This suit was designed in order to time travel through the Quantum Realm safely. It is a white, red, and black suit that materializes around the wearer's regular clothes when time travel is required and disappears when no longer in use. It has size-shifting adaptability down to subatomic levels and a wrist gadget that allows for displacement through time and space.

Other Equipment

 * Flash Bombs: Romanoff used two of these Flash Bombs to blind some of the security guards at Hammer Industries Headquarters, easily dispatching them afterward.
 * : Romanoff took one of the pepper sprays carried by Hammer Industries security guards, and used to dispatch the last guard before attempting to arrest Ivan Vanko.
 * Miniaturized Smoke Grenades: Romanoff used some miniaturized smoke grenades given to her by Phil Coulson to create a diversion on Yuri Klementiev's yacht, using the smoke to simulate a fire.
 * Glider Harness: Romanoff used the Glider Harness when she was forced to flee when Mikhail Fjodorov was killed by a woman that called herself Sofia.
 * Photostatic Veil: Romanoff used a Photostatic Veil in order to disguise herself as Councilwoman Hawley and stop Project Insight.
 * Transmitter Pager: A communication device used by Nick Fury, an ordinary Earth pager modified by Carol Danvers using Kree technology for use as an instrument of last resort in extreme emergencies. Fury was eventually forced to use it in response to the Snap. It was later found and used by the Avengers.

Vehicles

 * Quinjet: Romanoff has used a Quinjet for transportation to travel around the world and take out threats during active missions as an agent of S.H.I.E.L.D. and as a member of the Avengers. She usually co-pilots the Quinjet, controlling the weapons that are built into its systems.
 * Chitauri Chariot: During the Battle of New York, Romanoff realized that they needed to close the portal after containment proved to be overwhelming. Captain America helped her to jump on a Chitauri Chariot to quickly ascend to Stark Tower while the rest of the Avengers continued to battle the Chitauri.
 * Jeep: During the Attack on the HYDRA Research Base, Romanoff and Barton used a Jeep to fight the HYDRA soldiers and move around faster. When all the Avengers regrouped to attack the HYDRA soldiers, Romanoff crashed the Jeep as she and Barton jumped out to continue fighting on foot.
 * Motorcycle: Romanoff used a motorcycle during her missions with the Avengers prior to its destruction during the Battle of Seoul.
 * Truck: Romanoff drove a truck with a plow attached to its front in order to run over many Ultron Sentries so she could rendezvous with her fellow Avengers at the citadel.
 * Benatar: Romanoff and the Avengers used this ship to travel to the Garden to undo the Snap and kill Thanos. Years later, Romanoff and Hawkeye used this ship to travel to Vormir to obtain the Soul Stone during the Time Heist.

Facilities

 * Red Room Academy: Romanoff was raised and trained at the Academy from a very young age after being recruited to the KGB. There, she endured both an education and indoctrination into the world of spycraft.
 * Stark Industries Headquarters: When Romanoff was tasked with watching over Tony Stark by Nick Fury, she went undercover as Stark's personal assistant. As part of her undercover mission, Romanoff was required to perform tasks for Stark, working at his headquarters.
 * Avengers Tower: After the collapse of S.H.I.E.L.D., Tony Stark decided to fund the Avengers, redesigning Stark Tower as a new headquarters for the team. After retrieving Loki's Scepter, the Avengers held a party at the tower which fell under attack by a newly created Ultron. The Avengers then proceeded to search for Ultron in the tower, going through their files until they came across Ulysses Klaue.
 * Clint Barton's Homestead: When Romanoff was spared by, and eventually became best friends with, Clint Barton, she was one of the few people to know of his family. She would develop a close relationship with the family, forming an aunt-like relationship to his children, often visiting his home, including when all the Avengers were defeated by Ultron.
 * New Avengers Facility: After the Ultron Offensive, the Avengers relocated their base of operations to a facility upstate. There, Romanoff and Steve Rogers would train the new lineup of Avengers, as well as use it as their place of residence.

Family

 * Ivan Romanoff † - Father
 * Mother †

Allies

 * Red Room
 * Madame B. - Mentor
 * Melina Vostokoff
 * Yelena Belova
 * Alexei Shostakov/Red Guardian
 * S.H.I.E.L.D. (First Incarnation)
 * Phil Coulson † - Former Colleague and Savior
 * Rick Mason - Former Colleague
 * Victoria Hand † - Former Colleague
 * Melinda May - Former Colleague
 * Lillian - Former Colleague
 * Kristen - Former Colleague
 * Stark Industries
 * Pepper Potts - Former Employer
 * Happy Hogan - Former Colleague
 * Vera Brezneva
 * Avengers - Teammates and Friends
 * Steve Rogers/Captain America - Former Leader, Close Friend, Former Colleague and Temporary Enemy
 * Tony Stark/Iron Man † - Former Employer and Temporary Enemy
 * Clint Barton/Hawkeye - Former Colleague, Partner and Best Friend
 * James Rhodes/War Machine
 * Bruce Banner/Hulk - Love Interest
 * Thor
 * Sam Wilson/Falcon - Temporary Enemy
 * Wanda Maximoff/Scarlet Witch - Former Enthraller
 * Pietro Maximoff/Quicksilver † - Former Enemy
 * Vision †
 * Peter Parker/Spider-Man
 * Scott Lang/Ant-Man - Temporary Enemy
 * Carol Danvers/Captain Marvel
 * Nick Fury's Crew
 * Nick Fury - Former Superior and Friend
 * Maria Hill - Former Superior and Friend
 * Erik Selvig
 * Sana Amanat
 * Helen Cho
 * Laura Barton - Close Friend
 * Cooper Barton
 * Lila Barton
 * Nathaniel Barton
 * World Security Council
 * Rockwell †
 * Singh †
 * Yen †
 * Hawley
 * Golden Tribe
 * T'Challa/Black Panther - Temporary Enemy and Savior
 * Shuri
 * T'Chaka †
 * CIA
 * Everett Ross
 * Sharon Carter - Former Colleague
 * Joint Counter Terrorist Centre
 * Bucky Barnes/Winter Soldier - Former Attempted Killer
 * Dora Milaje
 * Okoye - Former Teammate
 * Ayo - Temporary Enemy
 * Wakandan Royal Guard
 * Border Tribe
 * Jabari Tribe
 * M'Baku
 * Guardians of the Galaxy
 * Rocket Raccoon - Former Teammate
 * Groot
 * Nebula - Former Teammate

Enemies

 * Taskmaster
 * Ivan Vanko/Whiplash †
 * Hammer Industries
 * Justin Hammer - Former Employer
 * Hammer Drones
 * Emil Blonsky/Abomination
 * Samuel Sterns
 * Sofia † - Victim
 * Mikhail Fjodorov †
 * Starodoub
 * Chuzhoi
 * Rogusskii
 * Georges Batroc
 * Ten Rings
 * Richard Frampton † - Victim
 * Georgi Luchkov
 * Loki † - Attempted Killer
 * Chitauri
 * Leviathans
 * Baker
 * Wilson
 * HYDRA
 * Alexander Pierce † - Former Superior
 * Wolfgang von Strucker †
 * STRIKE
 * Jack Rollins - Former Colleague
 * Jasper Sitwell † - Former Colleague
 * List †
 * Ultimo †
 * United States Department of Defense
 * Bryant
 * Sandell
 * Scudder
 * Wenham
 * Ulysses Klaue †
 * Ultron †
 * Ultron Sentries †
 * Brock Rumlow/Crossbones † - Former Colleague and Attempted Killer
 * Thaddeus Ross - Former Ally
 * ISIS
 * Black Order
 * Corvus Glaive † - Attempted Victim
 * Proxima Midnight † - Attempted Killer
 * Cull Obsidian †
 * Outriders
 * Thanos †
 * Johann Schmidt/Red Skull

Trivia

 * Black Widow is mentioned in the non-canon video game Iron Man. While battling Maggia forces in Afghanistan, Tony Stark comments that he may be able to make it for his date with Ms. Romanoff after all.
 * In the comics, Black Widow is the product of a Soviet Super Soldier experiment, and has had relationships with Bucky Barnes, Matt Murdock, Tony Stark and Clint Barton.
 * In Captain America: The Winter Soldier and Avengers: Endgame, Romanoff wore a necklace with an arrow pendant as a symbol of her friendship with Hawkeye.
 * In Agents of S.H.I.E.L.D. episode Hot Potato Soup, Sam Koenig mentioned that Black Widow is the subject to a large amount of "steamy" internet FanFiction, with some people shipping her with Quake under the name "Quack".

Behind the Scenes

 * Scarlett Johansson was pregnant during the filming of Avengers: Age of Ultron, so many of her scenes were scheduled early in filming before she began to show. To help hide her pregnancy later in filming, three stunt doubles were hired. This caused quite a bit of confusion among the other actors since, according to them, all of the stunt women looked very similar to Johansson. Chris Evans stated that it got to the point where he would say hello and start a conversation with one of them, only to realize that the person he was talking to was not Johansson. Ultimately, some scenes used CGI to hide Johansson's pregnancy.
 * The role of Black Widow was originally offered to, but she turned it down.
 * Before given the role of Black Widow in Iron Man 2, Johansson wanted the role so badly that she dyed her hair red.
 * Scarlett Johansson was uncredited for her appearance in Captain Marvel.
 * ,, , Natalie Portman, and Angelina Jolie were also considered for the role. Natalie Portman would later play Jane Foster in Thor, Thor: The Dark World, Avengers: Endgame and Thor: Love and Thunder and Angelina Jolie would later play Thena in The Eternals.
 * Heidi Moneymaker, Bridgett Riley, Amy Johnston, Mandy Kowalski, Casey Michaels, Helen Steinway Bailey, Crystal Hooks, Tara Macken, Rebecca Bujko, Eniko Fulop, Claudia Heinz, C.C. Ice, Michaela McAllister, Dena Sodano, Lucy Jayne Murray and Martin Ivanov were stunt doubles for Scarlett Johansson in the role of Black Widow.
 * Dina Cataldi, Rachel Steele, Faye Sewell, Amanda Fordham and Alexandra Doyle were stand-ins for Scarlett Johansson in the role of Black Widow.
 * Megan Harwick was a photo double for Scarlett Johansson in the role of Black Widow.
 * Due to the heat and uncomfortable nature of her catsuit, Scarlett Johansson didn't wear any underwear while filming scenes for The Avengers.