Witnessing a drug deal involving local gang members and cops, an Australian police officer feels he can no longer be just an observer. He joins forces with a local teacher, who just happens to be a karate expert, and together they try to take back the streets.

Kris and Preston team up once again to take on powerful gangster Buntao. But Buntao has problems of his own, dealing with Dazo, another gangster who is on a steady rise to power...