

The film takes place aboard an American submarine in the Pacific during World War II. The sub's commander is ordered to stop and pick up an underwater demolition team led by Lt. Hayes, whose mission is to locate and destroy a US submarine sunken in a lagoon off Bikini Atoll before the Japanese are able to raise it and capture the advanced radar system on board.
Acting
Frankie Avalon's earnest confusion in every scene.
Production
Clearly not shot anywhere near actual water.
Costume
Spotless navy whites somehow stay pristine underwater.
Director
Anthony Carras
Trivia, insights & behind the scenes
American International Pictures rushed this into theaters to capitalize on Frankie Avalon's beach party stardom, despite him having roughly 12 minutes of screen time.
The actual Bikini Atoll nuclear tests had occurred less than a decade earlier, making the title's cheerful beach connotation deeply, unintentionally uncomfortable.