Two men and a woman, all friends and martial arts experts, visit Hong Kong, where they grew up. When the woman disappears, the men find out that she has been kidnapped by white slavers, and find themselves battling a gang of kung-fu killers in an attempt to rescue their friend.

Set in Macao, the film finds Richard Jaeckel cast as a two-fisted, womanizing private detective. He has been assigned to track down an international crime ring, run by the sort of folks who have no qualms about knocking someone off just to keep in practice.