Wonder Woman and Steve Trevor go undercover in the Bermuda Triangle to find a surveillance plane and its pilot. Wonder Woman has a second goal, to protect the identity of Paradise Island, which is located in the triangle. They are shot down by bad guy Manta and parachute to his island. Lynda Carter / Diana Prince / Wonder Woman, Lyle Waggoner / Steve Trevor, Charles Cioffi / Raymond Manta and Normann Burton / Joe Atkins.

As well as rescuing Steve from a tree, pretending he saved her and vanquishing the bad guys, Diana shows she's an ace couturier with a swiss army knife.