Matt Logan (Chuck Norris) is good at getting the bad guys. He proved that when he was in Vietnam as a member of an elite military force. Now, he has been hired to teach a narcotics squad how to do battle in martial arts. This is not exactly what he has planned to do for a living, but the money is good. He finds himself wanting to fight with the undercover squad when his son, Charlie (Eric Laneuville) is killed by a drug lord. He is joined in his vendetta by Detective Mandy Rust (Jennifer O’Neill) who is not only the best martial arts pupil he has ever instructed, but is rapidly falling for Matt. With the help of Mandy, will Matt find the killer of his son?