A young man is charged with drug trafficking. He pleads guilty under undue influence from his defense lawyer, in exchange for a reduced sentence. Hard-edged former cop Fok (Donnie Yen) is the unconventional prosecutor assigned to the case. He becomes convinced that the conviction is unusual and decides to conduct his own investigation. Fok is forced to risk his own life and career to uncover the truth and bring the real villains to justice. Where the law ends, his justice begins…