April 1 , 2004 , rivers and lakes pass to the news, Hong Kong's largest triad syndicate waiting at home , the Commissioner of Police office after the assassination a month Wangzhen Yang .
Three irrelevant policemen, including the Crime Unit Sergeant Feng Zhiwei (Alex Fong ornaments ) , Intelligence Bureau Senior Police Wong Ka Fai (Kevin Cheng ornaments ) and undercover officers Yang Qidong ( Patrick Tam ornaments ) are implicated .
Family waiting at the helm designate China ( Wei Junjie ornaments ) to form an alliance with the Thai gang leader Sam ( ornaments Chatchai Plengpanich ) , the secret alliance events , Thailand, Interpol, Rita ( Sririta Jensen, decorated ) took over the investigation .
In the public and in private , hui must be completed within thirty days after the task . He found that the Organised Crime and Triad Bureau Inspector Lu Yaoguo ( Moses ornaments ) relationship with China is unusual, and thus investigating him . The country will soon killed , he Si Qianzeng met with Wei , together with Wei and Chinese girlfriend Peng Hui ( Yoyo Mung ornaments ) hobnobbing , it would become the Hui aim of the survey . The other hand , Rita also suspect that the death of another close to the situation of the country , so Hui jointly investigation . The action often fail, Fai can not help but begin to doubt the identity of Rita's . Wei was suspected by the compatriots on the occasion , has also launched a survey on Sam . However , Sam repeatedly come to the rescue , called Wei is difficult to distinguish Sam what are friends or foes .