Discover the origins of your favourite Super Heroes! Spider-Man: Teenager Peter Parker is bitten by a radioactive spider and becomes super agile and amazingly strong. X-Men: Living in a world that fears him, Charles Xavier is a mutant with uncanny telepathic powers. Iron Man: Billionaire inventor Tony Stark turns himself into a weapon when he is captured by enemy forces. Hulk: Scientist Bruce Banner is blasted with gamma radiation in an explosion that transforms him into a powerful green monster. The Avengers: When the forces of destruction are too great for just one Super Hero alone . . . Avengers assemble!