The Avengers: Earth's Mightiest Heroes: Season 1, Episode 12 - ProjectFreeTV

1 - 12: Gamma World, Part 1

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.