A kickboxing champ and a reporter are searching for a missing man, but they turn up a series of illegal kickboxing matches run by an arms dealer.

A married ex-Marine gets seduced by the same mysterious woman because of whom he ended up in prison some years ago. Is she the true love of his life, or the biggest mistake he’s ever made?

A karate expert enters a deadly underground tournament to avenge one of his students who was killed there and stop the disgraced marshal arts champion who organized this deadly competition.

Ken has just moved from Kansas with his mother. He talks to a girl named Julie, not knowing that her boyfriend Tom is very possessive of her. Tom is learning karate from Lee, a sensei whose brother was killed by a rookie cop named Billy. Billy has since then become the janitor of the school that Ken, Julie and Tom go to. When Ken gets beaten up by Tom for talking to Julie again, Billy helps Ken by teaching him how to defend himself, which eventually leads to a battle between student vs. student, and sensei vs. sensei.