The show focuses on the crime world of Jinghai and its collapse during the investigation.

In order to further combat organized crimes and root out local mafia, the official sent an investigation group to Jinghai. The mission of the group was to find evident proof towards the criminality of Gao Qiqiang who was a successful local businessman and take down the corrupted ones in the local government. An Xin was a policeman in Jinghai. He was called by Xu Zhong and Ji Ze, the leaders of the investigation. They hope to know more about Gao. An had a long history with Gao and his experience could be vital for the final crackdown.—Yang Ge