On the outskirts of San Francisco, a killer is loose, armed only with his mind. The leader of a mind-warping cult, Yarakunda (Cameron Mitchell) needs only to utter a few words to send his followers on a rampage of murder and destruction. When the daughter of wealthy industrialist, Templeton (Troy Donahue), falls under his evil spell, Templeton decides to fight back. He hires an ex-cop, Joe Wong, turned private investigator who is known on the street for getting jobs done. With the help of 5 special underground martial arts fighters, they penetrate the commune on a dangerous rescue and destroy mission