One Small Step for Mars / Haunted House / The Incredible Crude Oil MonsterOne Small Step for Mars Green Lantern and Superman must stop the reign of terror caused by Martians who traveled to Earth in a returning space probe. They are finally tricked into returning to Mars. Haunted House The Wonder Twins investigate the disappearance of two teens, but are captured by a paranoid caretaker when they enter a haunted house. Fortunately, Batman and Robin are nearby and help the Twins and the missing teens out of their bind. The Incredible Crude Oil Monster When a machine made to clean up oil spills falls into some crude oil, it creates a powerful monster made of oil. Aquaman, Hawkman, and Hawkgirl must find some way to stop this monster.