Two BMX expert bikers and a friend of theirs (Kidman) become entangled with a group of bank robbers after discovering a carton of walkie-talkies.
A group of schoolboy exercises is early in the morning before class in martial arts and supplies to late at night in an abandoned factory playful competitions in Ninja-Montour. Its stated Idol is their relentless coach, the veteran Steve Beck. When the young champion Robby observed that their "master" is addicted to drugs and kills his dealer, the admiration is gone. From the game seriously, as Steve wants to eliminate the unwanted witnesses.