The Avengers: Earth's Mightiest Heroes S1E21
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The Avengers: Earth's Mightiest Heroes
S01E21 — Hail Hydra!
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The Avengers: Earth's Mightiest Heroes

S01E21 Hail Hydra!

2011-05-22

When the Cosmic Cube becomes the focal point of a fierce conflict between Hydra and AIM, Black Widow seeks the aid of the Avengers. With both factions vying for dominance, she knows that only the combined strength of her allies can prevent the cube from falling into the wrong hands. The team must strategize and unite to thwart their enemies' plans and safeguard the powerful artifact before it's too late.

Season 1 Episodes

1
Breakout (1)
2010-10-20
 2
Breakout (2)
2010-10-20
 3
Iron Man Is Born
2010-10-24
 4
Thor the Mighty
2010-10-24
 5
Hulk Versus the World
2010-10-24
 6
Meet Captain America
2010-10-24
 7
The Man in the Ant Hill
2010-10-24
 8
Some Assembly Required
2010-10-27
 9
Living Legend
2010-11-03
 10
Everything Is Wonderful
2010-11-10
 11
Panther's Quest
2010-11-17
 12
Gamma World (1)
2010-11-26
 13
Gamma World (2)
2010-11-26
 14
Masters of Evil
2010-12-05
 15
459
2010-12-12
 16
Widow's Sting
2010-12-19
 17
The Man Who Stole Tomorrow
2011-01-09
 18
Come the Conqueror
2011-01-16
 19
The Kang Dynasty
2011-01-23
 20
The Casket of Ancient Winters
2011-05-15
 21
Hail Hydra!
2011-05-22
 22
Ultron-5
2011-05-29
 23
The Ultron Imperative
2011-06-05
 24
This Hostage Earth
2011-06-12
 25
The Fall of Asgard
2011-06-19
 26
A Day Unlike Any Other
2011-06-26