The Avengers: Earth's Mightiest Heroes - Season 1
1 - Breakout (1)
Air Date: October 20, 2010
A mass breakout occurs at each of the four supervillain prisons.
2 - Breakout (2)
Air Date: October 20, 2010
Ant-Man/Giant-Man, Hulk, Iron Man, Thor and Wasp band together to battle Graviton after he escapes from the Raft and targets Nick Fury.
3 - Iron Man Is Born
Air Date: October 24, 2010
After defeating HYDRA's attack on the United Nations, Iron Man learns that S.H.I.E.L.D. is taking control of his technology.
4 - Thor the Mighty
Air Date: October 24, 2010
After stopping a robbery attempt by the Wrecking Crew, Thor returns to Asgard in order to defeat Loki and the Frost Giants.
5 - Hulk Versus the World
Air Date: October 24, 2010
The Hulk is hunted by General Ross and the Absorbing Man while Hawkeye discover a conspiracy within SHIELD.
6 - Meet Captain America
Air Date: October 24, 2010
Kang the Conqueror observers, while Captain America and the Red Skull battle during World War II.
7 - The Man in the Ant Hill
Air Date: October 24, 2010
Ant-Man and the Wasp work together to stop Whirlwind. Meanwhile T'Challa's father fights the Man-Ape for control of Wakanda.
8 - Some Assembly Required
Air Date: October 27, 2010
The Enchantress uses her magic to manipulate the Hulk into distrusting the rest of the Avengers and attacking Thor.
9 - Living Legend
Air Date: November 3, 2010
The Avengers discover the frozen body of Captain America and revive him, leading Baron Zemo to attack, seeking revenge against Cap for infecting him with Virus X.
10 - Everything Is Wonderful
Air Date: November 10, 2010
Furious at Tony Stark for buying up his company, Simon Williams seeks revenge by undergoing a dangerous AIM procedure, overseen by MODOC and the Grim Reaper, Williams' brother, which turns him into a being of pure ion energy.
11 - Panther's Quest
Air Date: November 17, 2010
The Black Panther seeks the Avengers' aid in freeing his African nation of Wakanda from usurper king Man-Ape, and stopping Hydra agents Ulysses Klaw and the Grim Reaper from stealing Wakanda's supply of vibranium.
12 - Gamma World (1)
Air Date: November 26, 2010
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.
13 - Gamma World (2)
Air Date: November 26, 2010
It's up to Hawkeye, the Hulk, and Thor to save the day when the Leader's gamma radiation ray mutates the rest of the Avengers and threatens to do the same to every human on earth.
14 - Masters of Evil
Air Date: December 5, 2010
It's Hawkeye, Black Panther, and Ant Man to the rescue when Baron Zemo and his Masters of Evil defeat the rest of the team and take over the Avengers Mansion.
15 - 459
Air Date: December 12, 2010
The Avengers join forces with Captain Mar-vell in order to prevent a Kree sentry drone from destroying the Earth.
16 - Widow's Sting
Air Date: December 19, 2010
Defying the orders of both SHIELD and Iron Man, Hawkeye and Mockingbird allow themselves to be captured by Hydra in an attempt to bring down Black Widow.
17 - The Man Who Stole Tomorrow
Air Date: January 9, 2011
Kang arrives from the future, claiming he must kill Captain America and conquer the Earth in order to save it from destruction.
18 - Come the Conqueror
Air Date: January 16, 2011
Kang launches a full-scale invasion of Earth using an army of robots, and in order to save New York, the Avengers are forced to unleash the Ultrons who serve as guards for the Negative Zone Prison.
19 - The Kang Dynasty
Air Date: January 23, 2011
The Avengers board Kang's command ship in order to put an end to his invasion of Earth.
20 - The Casket of Ancient Winters
Air Date: May 15, 2011
Dark elf Malekith the Accursed locates an Asgardian artifact that plunges the Earth into eternal winter.
21 - Hail Hydra!
Air Date: May 22, 2011
Black Widow turns to the Avengers for help when Hydra and AIM battle over control of the Cosmic Cube.
22 - Ultron-5
Air Date: May 29, 2011
When Ultron-5 goes out of control and kidnaps Wasp, things go crazy when the droid kills Thor with his lasers.
23 - The Ultron Imperative
Air Date: June 5, 2011
Despite Thor going missing and Captain America ending up in the hospital, the Avengers must stop Ultron from eliminating the world's most flawed creatures-humanity.
24 - This Hostage Earth
Air Date: June 12, 2011
The Masters of Evil take over Earth and Loki double crosses Baron Zemo.
25 - The Fall of Asgard
Air Date: June 19, 2011
Separated across the mythological realms, the Avengers face new threats and make allies for the fight against Loki.
26 - A Day Unlike Any Other
Air Date: June 26, 2011
Eight of the nine realms of Asgard have fallen, only the Earth remains. The Avengers are all that stands between Loki and total conquest.