Before the days of going toe-to-toe with the Avengers, a younger Loki is desperate to prove himself heroic and capable, while it seems everyone around him suspects him of inevitable villainy and depravity...except for Amora. Asgard's resident sorceress-in-training feels like a kindred spirit - someone who values magic and knowledge, who might even see the best in him. But when Loki and Amora cause the destruction of one of Asgard's most prized possessions, Amora is banished to Earth, where her powers will slowly and excruciatingly fade to nothing.

Gamora arrives on Torndune—a once-lush planet that has been strip-mined for the power source beneath its surface—with a mission: collect the heart of the planet. She doesn't know who sent her, why they want it, or even what the heart of a planet looks like. But as the right hand and daughter of Thanos, and one of the galaxy's most legendary warriors, her job is not to ask questions. Her job is to do what she's told, no matter the cost. What she doesn't know is that her sister, Nebula, is in hot pursuit.

Stark Enterprises has unleashed the Infinite Engine, which promises to be an energy source unlike anything ever seen before. But saboteurs from both A.I.M. and Hydra have set their sights on the engine as well - along with Dr. Doom. When a respected scientist is killed and the Engine taken over, Spiderman and Iron Man join forces to safeguard the Infinite Engine - and all of humanity.

Dr. Bruce Banner. Emil Blonsky. One a brilliant scientist, the other an agent for the KBG. Both men whose lives were irrevocably altered by gamma radiation - transforming Banner into the incredible Hulk and Blonsky into the deadly Abomination. For years, the two super-strong creatures have clashed. Now they are brought together for their most deadly confrontation yet. The Abomination has allied himself with the URSA, an organization dedicated to restoring the Soviet Union - but he is using the URSA to further his own mad quest for vengeance on all those who wronged him in life.

Captured by a vicious militia group called Liberty's Torch, Captain America is put on trial for the imagined crimes of America. Forced to defend himself in a hostile courtroom with no hope of a fair trial, the star-spangled Avenger faces his greatest challenge as his ideals are put to the acid test....