Li Yong is the captain of the criminal investigation team in Hai City. He is investigating an anonymous female corpse case, but his superior suddenly orders him to lead his team to investigate a smuggling case. At the smuggling site, the procuratorate suddenly intervened after receiving a report, and found diamonds worth 1.5 billion yuan in Li Yong's car. Li Yong was then placed under double regulation (a form of administrative investigation). When the criminal investigation team traced the source of the container contraband, they discovered that Meng En, the owner of the contraband, had been murdered. Li Yong decided to flee and clear his name.