A naive young scientist unwittingly helps mobsters build a laser weapon, then has to try to reclaim it from them in this crime drama parody.

Rural kung fu whiz Qiang travels to the big city to visit his friend Lung, who's taken up Xanda, a new martial art that fuses multiple styles. When Lung is grievously wounded by the Xanda champ, Qiang trains in the sport to seek revenge in the ring.

A gang of criminals terrorizes Hong Kong with two killer robots, one of which is modelled on the gang's female thug, Maria. When the robot gets damaged during a mission, an inventor working for the police captures and reprograms her to develop an independent personality.