In the busy central street, there was a loud explosion suddenly, and a group of robbers, such as Tian Health, openly robbed the car of 100 million dollars in new bills. Many innocent people were killed and injured. One of them was the unmarried wife of police officer Jin Chen (Nicholas Tse). Since then, Jin Chen has vowed to pursue Tian Jiankang for revenge, but Tian Jiankang and 1 billion dollars have disappeared.

Six months later, trainee inspector Fang Yiwei (Shawn Yue) was attacked while leading a police officer to stop and inspect the vehicle, and all the team members were seriously injured. The original Tian Shengyang gang appeared again. Senior Superintendent Zhang () and Luo Peiquan () planned a serial operation together, vowing to catch a group of gangsters. Patrol Wei ()' s brother is an undercover. He broke into Tian Jiankang's gang. Because of his identity, he was temporarily suspended and wanted to clear his brother's name. The three men lost several times in the chase, only to find that there was a mole in the police.