Superman and Batman hypnotize each other into forgetting their secret identities and then challenge each other to discover them.; Superman is upset because Batman was able to figure out his secret identity but he can't figure out Batman's.; Congorilla is transported to another world where he meets an Alien Congorilla much like himself.; When Super-Turtle hears the emergency whistle of the coal mine blowing, he digs underground to rescue two trapped miners. He is then charged four dollars in union dues for digging in the mine.