When the Hulk becomes too dangerous for the Earth, the Illuminati trick Hulk into a shuttle and launch him into space to a planet where the Hulk can live in peace. Unfortunately, the Hulk’s struggle to escape makes a malfunction in the shuttle causing Hulk to land on the planet Sakaar where he is sold into slavery and trained as a gladiator.

Scientist Bruce Banner scours the planet for an antidote to the unbridled force of rage within him: the Hulk. But when the military masterminds who dream of exploiting his powers force him back to civilization, he finds himself coming face to face with a new, deadly foe.

The Invincible Iron Man and the Incredible Hulk must join forces to save the Earth from its greatest threat yet! When two Hydra scientists try to supercharge a Stark Arc Reactor with Hulk’s Gamma Energy, they unleash a being of pure electricity called Zzzax – and he’s hungry for destruction. Together, Iron Man and Hulk are the only force that stands in the way of the Zzzax’s planetary blackout. But first, the super heroic duo will have to get through snarling Wendigos, deadly robots and the scaly powerhouse, Abomination. Can two of Marvel’s mightiest heroes find a way to work together without smashing each other before time runs out?