The Invisible Menace Superman and Aquaman battle submarine pirates who utilize the power of invisibility to steal a scientist's mining machine in order to cause undersea destruction. Initiation To join a club, a boy must get a picture of a bear. But when it awakens and traps him, the Wonder Twins must save him from certain doom. Coming of the Arthropods The SuperFriends must stop exiled alien insects who attempt to use a device to gain revenge on their homeworld. River of Doom When three archaeologists are captured by Jivaro Indians in South America, Wonder Woman and Rima race to their rescue.