Avengers: Endgame
Five years later, in 2023, Scott Lang escapes from the Quantum Realm. Reaching the Avengers Compound, he explains that he experienced only five hours while trapped. Theorizing the Quantum Realm allows time travel, they ask Stark to help them retrieve the Stones from the past to reverse the actions of Thanos in the present. Stark, Rocket, and Banner, who has since merged his intelligence with the Hulk's strength, build a time machine. Banner notes that altering the past does not affect their present; any changes create alternate realities. Banner and Rocket travel to Norway, where they visit the Asgardian refugees' settlement New Asgard and recruit an overweight and despondent Thor. In Tokyo, Romanoff recruits Clint Barton, who became a vigilante after the death of his family.