When a mysterious man known as Michael Korvac is discovered, the Avengers must figure out exactly what happened to him – all while defending him from the team of beings who have come after him: the Guardians of the Galaxy.

After being a prisoner of the Skrulls for months, Captain America teams up with other prisoners, including some of his enemies, to escape. But in order to do so, they must first get past the mighty Super-Skrull…

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.

Captain America teams up with the equally mistrusted Spider-Man to fight the Serpent Society when they try to rescue Viper and King Cobra from S.H.I.E.L.D. custody.