China O'Brien returns to her hometown to find it riddled with crime and drugs. With her taekwondo skills, she takes on drug dealers and fights for justice.

China O'Brien, a martial arts master and former police officer, returns to her small town after the murder of her father, who was also a police officer. She discovers that the town is plagued by organized crime and takes it upon herself to bring justice. With her martial arts skills, she fights against the criminals and becomes a one-woman army. The movie is filled with hand-to-hand combat, gun battles, and intense action.