The Avengers: Earth's Mightiest Heroes - Season 2 (2012)

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.

The Avengers receive a man who appears to have been experimented on by aliens, and now hunted by another extraterrestrial group.

Iron Man learns from Nick Fury that the Avengers has been infiltrated by a Skrull impostor and the team turns against each other.

Thor meets an alien trespasser whose hostility and monstrous appearance belie his unexpected worthiness to wield his hammer, Mjolnir.

SHIELD is apparently attacked by the Hulk, but Banner is accounted for elsewhere at the same time while this Hulk is red in color.

The real Captain America and his fellow prisoners attempt to escape their Skrull prison.

A Skrull team posing as The Avengers invades Wakanda with only Ms. Marvel able to help the Black Panther.

The Skrull Empire initiates their seizure of Earth and the Avengers are hard pressed to thwart it.

With Captain America's reputation now in tatters, the superhero and the similarly maligned Spider-Man find themselves trying to thwart a prisoner transport interception.

Captain America and friends travel to Wakanda to repair his shield, unaware that a powerful android is hunting them to capture it among other objectives.

When The Enchantress magically weakens Thor, Iron Man and Captain America, only Hawkeye is unaffected as the Wrecking Crew and Loki in the Destroyer body pursue them.

When an Avenger group visits SHIELD's special prison in the Negative Zone, they soon find themselves under siege by a mysterious enemy.

Ultron orders the Vision to lead his android impersonators of the Avengers in capturing the originals.

When Henry Pym is apparently killed, a new vigilante using equipment broadly similar to the scientist's is discovered attacking criminals.

After a month of being dormant for repairs, The Vision finds the world under the control of Tony Stark.

When there is a sudden exposure of a malignant virus around the Avengers mansion, the Secretary of Defense blames the team and lays siege of the headquarters.

While dealing with the Red Skull's escape with his Sleeper robots, Captain America also investigates the villain's former henchman who seems disturbingly familiar.

With the Hulk apparently rampaging wild, the Red Hulk comes to the Avengers to request to join.

When the Avengers are apparently killed by Kang the Conqueror, an automatic function created by Tony Stark calls up several allies as replacements.

As warned, the Kree Empire arrive to threaten Earth.

The battle against the Kree Empire continues, with Captain Mar-Vell facing an agonizing moral decision in the conflict.

The Avengers and their allies face the ultimate test when Galactus, the Devourer of Planets comes to consume Earth.