PlotIn this prequel to Mou gaan dou (2002), Chan Wing Yan has just become an undercover cop in the triads while Lau Kin Ming joins the police force. Both the triads and the police find an enemy in a rival crime boss. RATING 7.3 19k Votes GENREAction, Crime, Drama STARSEdison Chen, Shawn Yue, Anthony Chau-Sang Wong