Theft of the Time Stone

The Theft of the Time Stone was a plan executed by the Avengers as a part of their Time Heist.

Background
Ant-Man, Iron Man, Hulk, and Captain America were tasked with going back in time to the Battle of New York in 2012 to retrieve the Mind Stone, Space Stone, and Time Stone. Hulk was tasked with retrieving the Time Stone from Doctor Strange.

Theft
Upon arriving at the Sanctum, Hulk was instead met by the Ancient One, who informed Hulk that Strange was not yet a Master of the Mystic Arts and would not join them for a few years, telling him that Strange was still currently a neurosurgeon. Hulk implored the Ancient One to give the Time Stone to him, notifying her of the Decimation that Thanos caused in the future. The Ancient One refused, citing that she could not give him the Infinity Stone to alter his timeline and leave hers undefended, despite Hulk claiming that he would return the stone to her at the exact moment it was taken. The Ancient One proclaimed that the Masters of the Mystic Arts had sworn an oath to guard the Time Stone, only to be shocked when Hulk inquired why Strange had willingly relinquished the Time Stone to the Mad Titan. Realizing that Strange would only have given Thanos the stone for a reason, the Ancient One decided to trust her future successor, entrusting Hulk with the Time Stone.

Aftermath
Captain America and Hulk successfully completed their missions. Ant-man and Hulk returned to 2023. The Infinity Stones were successfully used to reverse the Decimation. Captain America returned the Infinity Stones to their respective locations and time.