A policeman infiltrates in a gang of forgers. He and their leader fought together in Vietnam, where he saved his life. The policeman arrives to the gang headquarters, a mansion in the Californian coast, and thinks everything is under control, until some unexpected visitors, a gang of deranged hippies, show him he is wrong.

An explorer, Stanley, leads a woman to meet her brother, who is in a jungle place waiting to leave in search of King Solomon's mines. Tarzan joins as a guide for the group.