The Joker is aided in his Halloween quest to render modern technology useless and take over Gotham City by Solomon Grundy, Silver Banshee, Clayface and Scarecrow.

Iron Man and Captain America battle to keep the Red Skull and his triggerman, Taskmaster, from unleashing an army of Hydra Brutes on the world.

Lex Luthor is frozen during a battle with the Justice League. He thaws out in the 31st century, discovers Time Trapper and prevents Superman's arrival to Earth as a baby. Future teen heroes Karate Kid and Dawnstar must stop him.

Cuando el mundo se ve amenazado por un antiguo mal, las cuatro tortugas adolescentes deben reunirse y superar sus defectos para poder enfrentarse a él.