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.

A compilation of the micro-series episodes "Iron Man is Born!", "HYDRA Lives!", "Behold, the Mandroids!", and "Nick Fury, Agent of S.H.I.E.L.D

A compilation of the micro-series episodes "Thor the Mighty", "The Siege of Asgard", "My Brother, My Enemy", and "The Isle of Silence".

A compilation of the micro-series episodes "The Coming of the Hulk", "Hulk Versus the World", "This Monster, This Hero", and "Beware the Widow's Bite".

A compilation of the micro-series episodes "Meet Captain America", "The Red Skull Strikes!", "If This Be Doomsday!", and "Lo, There Shall Come a Conqueror".

A compilation of the micro-series episodes "The Man in the Ant Hill", "Enter the Whirlwind", "The Big House", and "Welcome to Wakanda".

The Avengers move into a mansion together, but Hulk threatens to kill everyone after he is magically manipulated by the Enchantress

The Avengers rescue a frozen Captain America, who has been on ice since World War II.

Simon Williams becomes a deadly being of ionic energy after being enraged by Tony destroying his company. Meanwhile, Wasp and Thor chase a group of AIM agents to find their secret hideout and run into another villain, MODOK.

T'Challa, the new Black Panther, meets the Avengers and tells them that his country has been overthrown by Man-Ape. As the Avengers arrive in Wakanda, not only do they have to help T'Challa reclaim his family's throne and country, but they also have to deal with Klaw and the Grim Reaper.

Leader has placed a dome around the Cube. It soon expands with anyone who is caught in it turned into a Gamma Monster. Meanwhile, Hawkeye catches up with Black Widow.

With the Avengers turned into Gamma Monsters, Hawkeye must convince Hulk to help fight Leader.

Supervillains invade Avengers Mansion and attempt to destroy the superheroes

Ant-Man and Wasp attempt to prevent an interstellar war between the Earth and two invading alien empires.

Hawkeye infiltrates Hydra Island to battle the Black Widow

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

The Avengers fend off Kang's invasion of Earth.

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.

When the team is devastated after a loss, Iron Man and Ant-Man go destroying all remnants of Ultron. But they do not realize that Ultron has transcended his body, and has taken over the world's technology systems.

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.

The Avengers struggle to survive in the realms of Asgard.

The Avengers go against Loki, although they are nothing to Loki's power.