The Avengers: Earth's Mightiest Heroes! - Episode Guide

Iron Man butts heads with Nick Fury and Shield after HYDRA attacks a meeting of the United Nations.

The Hulk is hunted by General Ross and the Absorbing Man while Hawkeye discover a conspiracy within SHIELD.

Ant-Man and the Wasp work together to stop Whirlwind. Meanwhile T'Challa's father fights the Man-Ape for control of Wakanda.

Thor battles the Wrecking Crew on Earth, while Loki plots against Odin and Asgard.

Kang the Conqueror observes, while Captain America and the Red Skull battle during World War II.

After Iron Man stops an A.I.M. arms trade, Hank Pym talks with Mad Thinker to see what he meant when he referred to the villains in the super prisons as soon being free. All four of the prisons then break down and each hero deals with this. Meanwhile, Leonard Samson is exposed to Gamma radiation when the Cube deactivates and is injured by Zzzax. Hulk escapes with Samson and heads to the nearest civilized area. Graviton escapes the Raft and seeks revenge on Nick Fury.

A flashback to 10 years before reveals Graviton's origin. In the present, Iron Man is outnumbered by old enemies at the Vault. To escape and fight Graviton, Tony self-destructs the Vault, but his armor was damaged and he radios a replacement from his Chicago tower. Thor, Hank Pym, and Wasp try to fight Graviton. Later, they are joined by Hulk and Iron Man and with their combined power they defeat Graviton and form the Avengers in order to catch the 74 escaped supervillians that escaped the four prisons.

The Enchantress uses her magic to manipulate the Hulk into distrusting the rest of the Avengers and attacking Thor.

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.

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.

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.

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.

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.

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.

The Avengers join forces with Captain Mar-vell in order to prevent a Kree sentry drone from destroying the Earth.

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.

Kang arrives from the future, claiming he must kill Captain America and conquer the Earth in order to save it from destruction.

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.

The Avengers attack Kang's ship with the help of the last of the Ultrons. They defeat Kang, who tells them the worst is yet to come.

The Avengers must stop Malekith the Accursed after he unleashes an everlasting winter on Earth. Once Malekith is defeated Thor learns he has been barred from returning to Asgard.

The Black Widow requests the Avengers' help in retrieving the Cosmic Cube before AIM and HYDRA tear the world apart fighting over it.

Ant-Man gets tired of unending violence and he wants to find a better way to bring peace to world. After all, this is why he created the robot army, Ultron. But something goes terribly wrong.

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.

The Masters of Evil go all across the world preparing for an invasion that the Earth has never seen. Unless the Avengers can stop the invasion, the people of Asgard are coming to Earth.

Separated across the mythological realms, the Avengers face new threats and make allies for the fight against Loki.

Eight of the nine realms of Asgard have fallen, only the Earth remains. The Avengers are all that stands between Loki and total conquest.

While playing host to the Fantastic Four at Avengers Mansion, the Avengers find themselves under attack by Doctor Doom's forces.

An armorless Iron Man fights A.I.M.'s latest creation, the Technovore, while A.I.M. goes up against Captain America, Black Panther, and War Machine in an effort to steal the armored avenger's armor.

The Enchantress, after being betrayed by Zemo, seeks revenge on her former teammates, leaving the Avengers in the middle of a clash between supervillains.

Ronan the Accuser of the Kree Empire arrives at Earth with Captain Mar-Vel in tow to pass judgment on whether the planet should be annexed or destroyed.

When Henry Pym discovers that his Ant-Man equipment has been stolen and being used by a criminal, he hires Heroes for Hire to recover it.

An extraterrestrial being named Michael Korvac seeks the Avengers' protection from "villains" who turn out to be the Guardians of the Galaxy. As the Avengers fight the Guardians to keep Korvac safe, they are unaware that they are protecting the wrong person.

The Avengers are torn apart when Nick Fury returns and reveals that the shapeshifting aliens Skrulls have begun infiltrating Earth. The situation becomes worse when they learn a Skrull lurks within the Avengers.

While searching for the fire demon Surtur, Thor is attacked by a powerful creature known as Beta Ray Bill. The unthinkable happens when Bill lifts Thor's hammer as the two battle. Thor must ally himself with this strange warrior to save Asgard before Surtur and his demon army burn it to the ground.

When S.H.I.E.L.D. is attacked by the Hulk, the Avengers rush to the scene. When they arrive, the rampaging Hulk is RED! The hunt is on for Bruce Banner as the Avengers try and unravel the mystery of 'Who is the Red Hulk?'

After being held prisoner for months, Captain America is ready to break out. If he is to succeed he must team up with his enemies. Cap won't let anything stop him, but he didn't count on facing the Super Skrull!

The Skrull invasion has begun, and Wakanda is the first target. Ms. Marvel is the only one there to fight off these aliens, whose shape-shifting abilities make matters much worse for her.

The Skrulls have invaded the entire Earth, and Captain America, Iron Man, and Thor lead an attack on the aliens.

Captain America is still trying to earn back the trust of the public, he teams up with the equally-mistrusted Spider-Man to fight the Serpent Society, whose members are trying to rescue Viper.

Still trying to restore hope and order to the world after the Skrull invasion, Captain America travels to Wakanda with the Avengers to repair his shield. However a new foe has come to take his shield. The Avengers must now find out where he came from and who sent him before he prevails.

Stranded in the Negative Zone, the Avengers must join forces with their enemies - including former members of the Masters of Evil - to fight off an army of strange insectoid creatures that are laying siege to 42.

The Avengers are ambushed and captured, one by one, by Ultron's team of synthezoid Avengers as part of the wayward android's plan to rid the world of "flawed" humans, perfect himself, and construct a mate.

A mysterious explosion seemingly kills Hank in his college laboratory, but as the Avengers and their friends mourn the loss of their fallen comrade-in-arms, a fearless new vigilante - endowed with the same powers and technology as Ant-Man/Giant-Man and Wasp and calling himself "Yellowjacket" - begins taking out the members of the Serpent Society.

The Vision awakens after a month of repairs to find that Tony Stark and his fellow Avengers have taken over the world. With the whole planet turned against him, the Vision must get to the bottom of Tony Stark's 'utopia' - only to discover an unlikely figure to be the true power behind the Avengers' throne.

Strange fumes sicken all of the Avengers - save for Iron Man, whose suit of armor provides him with protection. Now the armored Avenger must race against time to synthesize a cure for the infected - while the team face the prospect of being quarantined by U.S. Defense Secretary Dell Rusk, who has sent Doc Samson, Falcon, the Red Hulk and the Winter Soldier to arrest them. When Captain America is captured by the Winter Soldier and brought before Dell Rusk, he learns that the enigmatic Secretary harbors a diabolical secret from the supersoldier's past.

Captain America ponders the mystery of the Winter Soldier and enlists Nick Fury's aid to find him when the Red Skull escapes from prison and massive robots - the Sleepers - arise as part of a contingency plan by the founder of HYDRA to destroy Washington, D.C.

When the Hulk's name is cleared of the crimes committed by the Red Hulk, the Avengers find that the deception put forth by Captain America's Skrull doppelganger has made the green-skinned juggernaut even more of a loose cannon than before. Meanwhile, the enigmatic Red Hulk returns with a scheme to usurp the Hulk's place among the Avengers.

Kang the Conqueror is freed from prison by his alternate timeline look-a-likes and attempts to conquer the world once again. This time he traps the Avengers in a temporal void to keep them from getting in the way of his plans. Now a new team of heroes (Spider-Man, War Machine, Wolverine, Iron Fist, Luke Cage and the Thing) must band together to stop the cross-temporal onslaught.

The Kree attempt to create a wormhole connecting our solar system with their galaxy, which will consequently destroy the Sun and all life on Earth - just as Kang the Conqueror predicted. The Avengers and Captain Marvel head into space to stop it, but will they be in time?

The Avengers arrive on the Kree homeworld of Hala, but find that they aren't exactly welcome there - even with Captain Marvel on their side.

From the very moment of their team's inception, the Avengers have fought against super-villains, time-travelling conquerors and even shape-shifting alien invaders. But now they must bring forth an army of nearly all their allies to face their greatest challenge yet - Galactus, the devourer of countless worlds and civilizations, and his quartet of heralds drawn from the very elements of nature.

The Enchantress, as part of her master Surtur's plan, offers Loki a chance to exact his revenge on Thor and the Avengers for thwarting his conquest of the Nine Realms. She uses a spell to strip Thor, Captain America, and Iron Man of their powers. Now, the helpless heroes must defeat Loki (his soul now in command of a powerful Asgardian weapon known as the Destroyer) without their abilities.