Anti-triad stem probe hi ( Ng ) personality was strong and , uncompromising, repeatedly breaking the mystery . The regrettable hi accustomed to arbitrary , not in conjunction with other colleagues , especially his boss , where ( Lai Yiu Cheung) and just joined the Concord ( Benny Chan ) by Meng quit meaning . After hi Sport more understanding on , and eventually became good friends . Kang even more hi regain momentum , with all his teammates brother ( Maggie ) , Grasshopper , Aberdeen ( Timmy ) , Buddha ( Guan Jing ), and work together to the detection of many serious cases , such as " Tsz Wan Shan King " , "school situation " fish market turmoil " and" Last Action Hero "and so on . Group of anti-triad pioneer in the emotional aspects , but each encounters : health and where in the investigative process , namely, to know the heart of any teacher ( Denise ) and women selling fish Johnson ( Louisa ) , expand the affair . But hi 's wife, Chi ( Winnie Yeung ) students in an accident , joy grief stricken crush hi long time brother silently comfort support , whether hi younger brother of the last will come together ?