Karate champion Matt Logan is enlisted by the police to train officers in self-defense after narcotics agents are killed by an assailant using the martial arts.

Jones is a secret agent who has gone into semi-retirement, concentrating instead on teaching the martial arts to inner city youths. The karate school is run by a kindly old...

Robert Neville, a doctor, due to an experimental vaccine, is the only survivor of an apocalyptic war waged with biological weapons. The plague caused by the war has killed everyone...