Ultron had finished building a new body at the HYDRA Research Base and recruited Quicksilver and Scarlet Witch to his cause at the Novi Grad Church. They then proceeded to obtain information on Ulysses Klaue from Wolfgang von Strucker before murdering him. Ultron went to the Salvage Yard with the twins in order to obtain vibranium that Klaue had stolen from Wakanda years earlier. The Avengers would soon follow Ultron to Klaue's base of operations in the salvage yard after analyzing physical records with Maria Hill to connect Strucker to Klaue. Thor and Captain America attempted to peacefully confront the trio, but Ultron attacked Iron Man and a battle between the three groups quickly escalated.
Iron Man and Ultron started fighting while flying through the Salvage Yard. Thor and Captain America started fighting some Ultron Sentries. Quicksilver also joined the battle fighting the Avengers. Ulysses Klaue's forces started shooting at the Avengers and Ultron's forces. After Captain America defeated the Ultron Sentry he was fighting, he went to fight Quicksilver, but Quicksilver knocked him out temporarily.
Scarlet Witch then began hunting for the Avengers, incapacitating Captain America and Thor by instilling nightmarish visions in them. She also instills a nightmarish vision on Black Widow, after Natasha was knocked out during the battle. When she went to give Hawkeye a vision, he turned around shocking her with a electric arrow until Quicksilver came and threw him through a window. Iron Man was able to defeat Ultron's current form and went back to help his friends until he had to go to Johannesburg with the Iron Man Armor: Mark XLIV to stop the Hulk.