Ex-Navy man Steve Kent, struggling to make a living in Macao, is approached by beautiful Vivian Craig. She wants to hire him and his boat to retrieve some medicine from a plane which crashed into the ocean on a flight from Manila. Kent dives at the crash-site but discovers he's been tricked into retrieving a cache of gold bars. He intends to report this cache to authorities but his growing attraction to Vivian soon causes him to change his mind. Vivian's husband, Allan, now appears on the scene. Kent reluctantly agrees to sail the gold to Hong Kong where it will be sold and the proceeds divided equally between himself, Vivian, and Allan. On the voyage to Hong Kong, however, Kent's boat is pursued both by the police and by a pirate named Bok-Ying.