Silk, the toughest cop in Honolulu, busts small time smugglers only to reveal a larger syndicate smuggling Asian mobsters into the States by buying the identities of Hawaiian citizens.

Left for dead in Vietnam, Lieutenant Cotter became a guinea pig for KGB baddie Mitovitch. Implanted with a mind control microchip, he is turned into a mindless killer. His colleague Lieutenant Sanders goes looking for him in Cambodia, then in El Salvador, where they kill pretty much everyone they meet.