The storyline is revealed through onscreen text. Iron Man and X-O Manowar must team up in order to stop a team of supervillains from grabbing the lost fragments of the Cosmic Cube. During the game it is also revealed that the space aliens that Aric stole his X-O Manowar armor from, want it back. The two super heroes battle through several levels to stop the terrorists and their supervillain leaders from trying to rule the universe.