Jason Chan, a Hong Kong lawyer, is angry at the way the law protects criminals and decides to take the law into his own hands, dishing out vigilante justice when a key witness and his entire family are murdered. But hotshot cop Cindy Si is soon on Chan's case, and the situation unravels into a fight that only a few will survive.

Cindy, an American FBI agent, travels to Hong Kong to investigate a newspaper editor, Ronny Dak, who is suspected of printing counterfeit money using the newspaper’s presses. The American teams up with a rival reporter and her friend Yu, an undercover law enforcer. Cindy’s investigation takes a sharp turn, however, when Yu’s father, the prosecuting lawyer in the counterfeiting case, is kidnapped.

Two unlucky thieves break into a just murdered man's hotel room and steal his passport with a hidden microfilm wanted by a triad boss. Two ass-kicking women cops—one Chinese, one British—are on the case.