Endgame War

The surviving Avengers meet Bruce Banner, Steve Rogers, Rocket, Thor, Natasha Romanoff, James Rhodes, and Nebula. They travel into space and find Thanos on an uninhabited planet. They plan to use the Infinity Stones again to undo the damage Thanos has caused, but Thanos reveals to them that he has already destroyed the stones to prevent them from being used again. Thor sever Thanos's head and the Avengers return to their headquarters. Five years later, Scott Lang emerges from the Quantum Realm. He goes to Avengers headquarters and explains to Romanoff and Steve Rogers that while he had been missing for five years, he had only experienced five hours in the Quantum Realm; the theory that they could travel through time using the Quantum Realm. The three go to Stark and ask him to help them recover the stones and reverse Thanos' actions. However, Stark refuses, fearing the loss of his daughter Morgana. However, after talking to his wife, he joins the Avengers and helps build a time machine with Banner, who has transformed into Professor Hulk; the two successfully build the time machine. Banner warns that changing the past does not change anything in the present.

Tony Stark goes to the new Asgardian sanctuary in Norway. Thor has become a heavy drinker due to his defeat by Thanos and the loss of his friends and family, and he has spent the past five years regretting why he did not tell Carol that he loved her.

Tony explains to Thor the solution they have found to save the others, and Thor rejoins the Avengers to save the others and meet Carol.

The Avengers travel through time and obtain the Infinity Stones, returning to the present, and Stark and Banner together create the Infinity Stones. Banner is tasked with breaking it and returning those who were wiped out by Thanos five years ago to the present. Banner does so, severely injuring his right hand. At that moment, Nebula 2014 sends Thanos' ship to the present.

The Avengers' headquarters is destroyed by Thanos' ship, and the battle between Thanos' army and the Avengers takes place for the second time. At this moment, the disappeared people (the rest of the Avengers, the rest of the Guardians of the Galaxy, the Wakanda army, Doctor Strange and the wizards and the rest of the Asgardian soldiers, Spider-Man, etc.) return, Carol stands next to Thor, Thor, who is happy to see Carol, first kisses her on the lips and says that he loves her, then with the help of Stormbreaker, he creates a large lightning bolt and the war begins. Thanos gets the glove and puts it in his hand, but the Avengers stop him and finally the stones fall from Stark's hand and Stark breaks his own and Thanos and his people disappear and Stark is killed due to the great pressure of the glove. In the end, the Avengers hold a farewell ceremony for Tony Stark. After the ceremony, Thor goes to help other planets with Carol.