26 episodes · first aired 2010-10-20
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | Breakout (1) 2010-10-20 | A mass breakout occurs at each of the four supervillain prisons. | 2010-10-20 | 5.8 |
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Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.
| 02 |
Breakout (2) 2010-10-20 |
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. |
| 2010-10-20 |
| 6.5 |
 | 03 | Iron Man Is Born 2010-10-24 | 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. | 2010-10-24 | 7.7 |
 | 04 | Thor the Mighty 2010-10-24 | After stopping a robbery attempt by the Wrecking Crew, Thor returns to Asgard in order to defeat Loki and the Frost Giants. | 2010-10-24 | 7.0 |
 | 05 | Hulk Versus the World 2010-10-24 | The Hulk is hunted by General Ross and the Absorbing Man while Hawkeye discover a conspiracy within SHIELD. | 2010-10-24 | 6.3 |
 | 06 | Meet Captain America 2010-10-24 | Kang the Conqueror observers, while Captain America and the Red Skull battle during World War II. | 2010-10-24 | 6.0 |
 | 07 | The Man in the Ant Hill 2010-10-24 | Ant-Man and the Wasp work together to stop Whirlwind. Meanwhile T'Challa's father fights the Man-Ape for control of Wakanda. | 2010-10-24 | 6.0 |
 | 08 | Some Assembly Required 2010-10-27 | The Enchantress uses her magic to manipulate the Hulk into distrusting the rest of the Avengers and attacking Thor. | 2010-10-27 | 7.5 |
 | 09 | Living Legend 2010-11-03 | 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. | 2010-11-03 | 5.5 |
 | 10 | Everything Is Wonderful 2010-11-10 | 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. | 2010-11-10 | 5.5 |
 | 11 | Panther's Quest 2010-11-17 | 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. | 2010-11-17 | 5.0 |
 | 12 | Gamma World (1) 2010-11-26 | 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. | 2010-11-26 | 5.5 |
 | 13 | Gamma World (2) 2010-11-26 | 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. | 2010-11-26 | 6.0 |
 | 14 | Masters of Evil 2010-12-05 | 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. | 2010-12-05 | 7.0 |
 | 15 | 459 2010-12-12 | The Avengers join forces with Captain Mar-vell in order to prevent a Kree sentry drone from destroying the Earth. | 2010-12-12 | 5.5 |
 | 16 | Widow's Sting 2010-12-19 | 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. | 2010-12-19 | 5.5 |
 | 17 | The Man Who Stole Tomorrow 2011-01-09 | Kang arrives from the future, claiming he must kill Captain America and conquer the Earth in order to save it from destruction. | 2011-01-09 | 6.0 |
 | 18 | Come the Conqueror 2011-01-16 | 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. | 2011-01-16 | 6.0 |
 | 19 | The Kang Dynasty 2011-01-23 | The Avengers board Kang's command ship in order to put an end to his invasion of Earth. | 2011-01-23 | 6.0 |
 | 20 | The Casket of Ancient Winters 2011-05-15 | Dark elf Malekith the Accursed locates an Asgardian artifact that plunges the Earth into eternal winter. | 2011-05-15 | 3.7 |
 | 21 | Hail Hydra! 2011-05-22 | Black Widow turns to the Avengers for help when Hydra and AIM battle over control of the Cosmic Cube. | 2011-05-22 | 5.5 |
 | 22 | Ultron-5 2011-05-29 | When Ultron-5 goes out of control and kidnaps Wasp, things go crazy when the droid kills Thor with his lasers. | 2011-05-29 | 6.0 |
 | 23 | The Ultron Imperative 2011-06-05 | 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. | 2011-06-05 | 6.0 |
 | 24 | This Hostage Earth 2011-06-12 | The Masters of Evil take over Earth and Loki double crosses Baron Zemo. | 2011-06-12 | 6.7 |
 | 25 | The Fall of Asgard 2011-06-19 | Separated across the mythological realms, the Avengers face new threats and make allies for the fight against Loki. | 2011-06-19 | 6.0 |
 | 26 | A Day Unlike Any Other 2011-06-26 | Eight of the nine realms of Asgard have fallen, only the Earth remains. The Avengers are all that stands between Loki and total conquest. | 2011-06-26 | 6.5 |
