Starring: Cynthia Khan, Zou Zhaolong, Zhang Guoqiang, Yu Xiaohui and Xie Keke.

brief Introduction of the content

This film reflects the story of Chinese mainland and Hong Kong police working together to form a police network to crack down on criminal activities before and after 1997. The Major Crimes Unit of the Hong Kong Police Station received a report that bandits attacked the jewelry factory. In the ambush, both sides suffered casualties, and the bandits finally escaped and sneaked back to the mainland. With the investigation of the case, the police discovered a series of criminal activities, such as drug trafficking, robbery, smuggling and kidnapping. They were all committed by a big black state led by a small businessman, He Zhonghao. Chen, the captain of the hacking investigation brigade of China Nanhua Public Security Bureau, and the deputy captain were appointed by their superiors to cooperate with the Hong Kong police in solving this series of major cases. In the process of handling the case, the police of the two places have continuously exchanged information, established good cooperative relations and won one victory after another.