Two of Marvel's Mightiest warriors collide in the first clip for Iron Man & Hulk: Heroes United, an all-new animated feature that arrives on Blu-ray and DVD on December 3. Watch as Bruce Banner's angry ID takes out his frustrations on Tony Stark in this continuation of Marvel's The Avengers.

The Invincible Iron Man and the Incredible Hulk have joined 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 Zzzaxm, 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?