This is the emotional story of two bloody men.
A murder that killed a whole family seven years ago forced the Black Panther, who was in his prime years, to leave the army and the battlefield and embark on a journey to find the real murderer.
An accidental injury seven years ago caused Chu Cheng to miss the opportunity to retain his best friend in life.
Seven years later, one person became a policeman and the other became a gangster.
When they meet again, they are entangled in the world of black and white.