Hong Kong business tycoon Ho Sen, under the guise of doing business, constantly smuggles drugs smuggled from the southwestern border of China into Hong Kong by taking advantage of the export of high-quality, inspection free chemical products from a mainland factory. To completely destroy this international drug trafficking group, the Hong Kong Police Department dispatched Wei Nan and Li Tong to mainland China to assist in solving the case. He Sen conspired with drug dealer Yin Dahua,
Hong Kong business tycoon Ho Sen, under the guise of doing business, constantly smuggles drugs smuggled from the southwestern border of China into Hong Kong by taking advantage of the export of high-quality, inspection free chemical products from a mainland factory. To completely destroy this international drug trafficking group, the Hong Kong Police Department dispatched Wei Nan and Li Tong to mainland China to assist in solving the case. He Sen conspired with drug dealer Yin Dahua,