A psychopathic thief is chased by the police after he and a gang of thieves murder the owner of a gun store.

A serial rapist is loose in the Hong Kong suburb of Tuen Mun. Based on the true story of Lam Kwok-wai, who raped and murdered women in the early 90s.

The head of the Organized Crime and Triad Bureau, Inspector San Lee, will do anything to put triad boss Tung in jail.

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.

A body is found inside a water tank a top of an apartment building. It's not a hard case to solve for Danny Lee and company.

Gao Xiang is a senior member of insurance. He runs all kinds of criminal undertakings and plays with the police. There was a gun robbery in the Chengmen River, which lost 1.5 million US dollars. The perpetrator was a big boy who committed the cross-border crime. Because the money was insured by Xiang's insurance company, Xiang therefore investigated the case and determined that there must be an insider. This triggered Xiang's criminal idea. If he could ambush the escort company and provide him with the driving route of the refund car, he could rob the money at any time. Xiang then launched a plan and hooked up with the female manager of the escort company.