The Avengers: Earth's Mightiest Heroes

Season 1, Episode 12

Episode Title: Gamma World (1)

Air Date: 2010-11-26

Overview:

When the Leader creates a bubble of gamma radiation emanating from the Cube that mutates any human it touches, the Avengers team up with Doc Sampson to stop him. Meanwhile, Hawkeye infiltrates a Hydra base in order to capture Black Widow.