A team of cops has the mission to protect a witness from being killed. After several killing attempts, the cops will realize how dangerous is the duty they have been assigned to.

Two Cops, one young and hotheaded, the other aging and by-the-book, are teamed up to break a case involving a series of Jewel heists by a ruthless young gangster and his illegal immigrant gang.

Inspector General Li Tiezhu took over the investigation of a case related to the collusion between police officers and the underworld. The target figures were Huang Zhenxiong, the detective of the serious crime team, and a group of agents under him. Xiong solved many cases with the help of the underworld, but he also accepted the benefits of the underworld and had illegal discipline. Li Tiezhu wanted to collect evidence of Xiong and others, but because Xiong was also a competent policeman and was good at hiding evidence to avoid legal sanctions, Li Yi could not bring Xiong to justice for a while. After that, a new captain named Chang joined the ranks of Xiong. Chang was an upright policeman. Xiong's attempt to buy failed, and Li also took the opportunity to use Chang to collect evidence of Xiong's crime to arrest Xiong, and Xiong committed suicide in fear of crime.

Chan Siu Hong is a lawyer who goes into jail after hitting a vicious policeman. He's welcomed by the inmates because he convinces fellow inmates not to use violence to settle every dispute.