S1·E21 Hail Hydra!
Core
Aired May 22, 2011 25 min ★ 5.5/10 · 2 TMDB votes
Synopsis
Black Widow turns to the Avengers for help when Hydra and AIM battle over control of the Cosmic Cube.
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Frequently Asked Questions
When did Season 1 Episode 21 of The Avengers: Earth's Mightiest Heroes air?
Season 1, Episode 21 ('Hail Hydra!') originally aired on May 22, 2011.
How long is Season 1 Episode 21 ('Hail Hydra!')?
The runtime for this episode is approximately 25 minutes.
What happens in The Avengers: Earth's Mightiest Heroes Season 1 Episode 21?
Black Widow turns to the Avengers for help when Hydra and AIM battle over control of the Cosmic Cube....