Plot

Nemus steals an untested underwater mining device which could lead to unknown consequences. The Wonder Twins come to the rescue of a new Bear Club member who's initiation includes taking a photo of a bear at Lonesome Pine Cave. The Super Friends try to stop an attack by the Arthropods who had been banished for crimes on their home planet. Wonder Woman and Rima try to save three geologists who are sentenced to death for disturbing the sacred burial grounds of natives. Wonder Woman teaches how to use a crosswalk. Aquaman teaches a coin vanishing magic trick. Superman teaches that saying no to drugs is the right decision.—Mark D. Snyder

The Super Friends investigate when "The Invisible Menace" causes the disappearance of a professor and his latest invention. Next, the Wonder Twins intervene when an "Initiation" rite goes awry. Later, the Super Friends unite to stop "The Coming of the Arthropods." Finally, Wonder Woman and Rima aid three geologists after they inadvertently invade a tribe's sacred burial ground and are sentenced to the "River of Doom."