Still from The Avengers: Earth's Mightiest Heroes S1E21
The Avengers: Earth's Mightiest Heroes › Season 1

S1 E21: Hail Hydra!

Black Widow turns to the Avengers for help when Hydra and AIM battle over control of the Cosmic Cube.

Air dateMay 22, 2011
Runtime25 minutes
TMDB rating★ 6.3/10