Veteran cop Zheng Ying goes undercover to bust Liu Qing's gang but vanishes after success. His daughter Zheng Dong Yu joins police to find him. Years later, an ex-con is targeted by a killer... Read allVeteran cop Zheng Ying goes undercover to bust Liu Qing's gang but vanishes after success. His daughter Zheng Dong Yu joins police to find him. Years later, an ex-con is targeted by a killer who claims to know Zheng Ying's fate.Veteran cop Zheng Ying goes undercover to bust Liu Qing's gang but vanishes after success. His daughter Zheng Dong Yu joins police to find him. Years later, an ex-con is targeted by a killer who claims to know Zheng Ying's fate.
