A young man is charged with drug trafficking, and he pleads guilty under influence from his defense lawyer in exchange for a reduced sentence. Former cop Fok (Donnie Yen) is an unconventional prosecutor assigned to the case. Fok is convinced that the conviction is unusual and decides to conduct his own investigation. What unfolds is a matter of his own life and career at stake as he goes a dangerous path to uncover the truth, and bringing the real villains to justice. Where the law ends, his justice begins.