When Captain America is apparently destroyed by Red Skull, Iron Man re-unites the team to try and avenge his friend and stop Red Skull's army.
When Red Skull steals Tony Stark's armor, the Avengers must put aside their differences and galvanize the team to stop him and M.O.D.O.K. from destroying New York City.
The rookie Falcon stands alone to save his team and stop a full-scale invasion of Earth after the Avengers fall victim to the body-swapping Space Phantoms.
Thor believes he must sacrifice himself to save the world from Doctor Doom, who summons the Midgard Serpent using a powerful Asgardian weapon.
To save Black Widow, Captain America leads the team into battle against a former World War II ally who he struggles to convince the team is a real person.
The Avengers are out-gunned by the high-tech, power-mimicking Super-Adaptoid, and Captain America is the last man standing against the ultimate artificial intelligence!
An all-powerful super-being, Hyperion, arrives to save the Earth, but when his methods become too extreme, the Avengers must stand up to him to save humanity from total domination.
Hawkeye and Black Widow take on a covert S.H.I.E.L.D. mission to bring in the son of a super-villain, but when he's revealed to have a world-bending weapon, they realize keeping their mission a secret may be a fatal mistake.