Avengers: Endgame

The Avengers had traveled to the past to collect all the Infinity Stones. Natasha Romanoff (Black Widow) had sacrificed herself in exchange for an Infinity Stone.

Now Thor, Steve Rogers, and Tony Stark were fighting Thanos and had been battered in the process. Something began to appear, and Steve looked back to see the portal to his left. Three figures stepped through: Okoye, Shuri, and Black Panther, fully restored and ready to fight. Steve and the revived Wakandans exchanged glances as Sam appeared, flying from above in his Falcon armor. As he did, dozens of portals opened around the battlefield. Through one of them, we saw Doctor Strange descend. He was accompanied by Drax, Mantis, Star-Lord, and Spider-Man. They all watched in confusion and amazement as more and more heroes arrived from all corners of the universe, backed by their own forces, including Black Panther and his Wakandan army, Valkyrie and the Asgardians, Wong and the Masters of the Mystic Arts, and several Ravager ships. Among the multitude of heroes, we saw Bucky, Groot, Scarlet Witch, Wasp, and Pepper Potts (dressed in her own Iron Man suit) arrive. Almost all the heroes had been magically transported to the battlefield to face Thanos's hordes. What do you do?