It was a case of all hands on deck in order to save humanity in the final, climactic battle scene in Avengers: Endgame.
'Avengers: Endgame' stands as a monument to the success of Marvel's big screen universe, and a behind the scenes look at its finale shows just how much went into making it work.
If you've not seen Avengers: Endgame by this weekend, then it's your own fault if you find out what happens at the end.
The Russo Brothers have appealed to fans not to spoil Avengers: Endgame, after five minutes of footage from the movie leaked online yesterday.
Chris Evans and the Russo Brothers discuss the ending of Phase 3 of the Marvel Cinematic Universe.