S2·E7 The Invisible Menace / Initiation / Coming of the Arthropods / River of Doom
Aired October 22, 1977
Synopsis
The Invisible Menace: Superman and Aquaman discover a deep down mystery of sinister submarines and sea life as they battle the Invisible Menace.
Initiation: The Wonder Twins and Gleek excel with Exxorian powers when they have to bring a dangerous initiation stunt to a safe ending.
Coming of the Arthropods: The Super Friends zoom off in an all out struggle against invading insects from a far off planet, for the entire Earth is threatened by the coming of the Arthropods, led by the evil Insecta.
River of Doom: Flying over jungle rain forests, Wonder Woman and Rima search for some missing scientists who are about to become victims of the River of Doom.