Learn how the "Earth's mightiest heroes" assembled to fight the battles no one else could.
Quest roles:
Robert Downey Jr.(Tony Stark / Iron Man (archive footage)), Chris Evans(Steven Rogers / Captain America (archive footage)), Mark Ruffalo(Bruce Banner / Hulk (archive footage)), Chris Hemsworth(Thor (archive footage)), Scarlett Johansson(Natasha Romanoff / Black Widow (archive footage)), Samuel L. Jackson(Nick Fury (archive footage)), Brie Larson(Carol Danvers / Captain Marvel (archive footage))