Iron Man & Hulk: Heroes United

Iron Man and the Hulk must unite to defend Earth from its most dire threat to date. When two Hydra scientists attempt to power Tony Stark's Arc Reactor with the Hulk's gamma energy, they unleash Zzzax, a being of pure electricity hungry for destruction. Together, Iron Man and the Hulk are the sole bulwark against Zzzax plunging the planet into blackout. Yet first, the dynamic duo must face snarling Wendigos, deadly robots, and the scaly powerhouse Abomination. Will Marvel's mightiest heroes find a way to work together without tearing each other apart before time runs out?