Watch The Avengers Earth's Mightiest Heroes Season 1 Episode 12 full movie online free in HD with English subtitles – no download needed.
The Avengers Earth's Mightiest Heroes: The Leader creates a dome of gamma energy that mutates everyone in the Cube into gamma monsters. Now, it's up to the Avengers to get inside the Cube and shut down the gamma dome. But will they wind up just like everyone in the Cube? Meanwhile, Hawkeye confronts the Black Widow again.