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.
as Lt. Morgan Hayes
as Seaman Joseph Malzone
as Capt. Emmett Carey
as Bosun's Mate Ed Fennelly
as Seaman Floyd Givens
as Lt. William 'Bill' Fourtney
as Lt. Jim Cale
as Seaman William Sherman
as Seaman Ronald Davayo
as Paul
as Reiko
as Seaman Kingsley (uncredited)
as Seaman Hiller (uncredited)
as Seaman Jones (uncredited)
as Seaman Morris (uncredited)
as Seaman Rich (uncredited)
as Dream Siren (uncredited)
as Third Native Girl (uncredited)
as Seaman Nolan (uncredited)
as CPO Perez (uncredited)
as Seaman Fowler (uncredited)
as Narrator (voice) (uncredited)
as Kawai (uncredited)
as Seaman Patterson (uncredited)
