In the film, Anthony Mackie’s Sam Wilson plays Captain America and finds himself trying to find out who’s behind President Thaddeus Ross’ (Harrison Ford) assassination attempt. As Ross tells the new Cap to reassemble the Avengers, it’s discovered that he’s taking gamma-radiated pills, and when he’s angry, he transforms into Red Hulk.

Brave New World director Julius Onah has explained why Harrison Ford's Red Hulk doesn't talk in the movie and reveals some of the other ideas thrown around for Bucky Barnes'

Brave New World underwent a variety of changes and tweaks, something a number of big-budget movies have gone through over the years. In addition to a title change, production was paused on the film due to the 2023 actors’ and writers’ strikes,