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.

Wayne is a hitman who wants to retire, so that he can provide a safe life for his wife and their soon-to-be-born baby. He also wants to go legit so that he can convince his dying boss to give up the gangster lifestyle. However, Lai finds getting work in post-Handover Hong Kong tough, and decides to take one last job.

In order to release his kidnapped sister, sports car mechanic, Chan Foh To, has to defeat a super-criminal street racer.

A look at the SDU in the Royal Hong Kong Police Force - how members are selected, how they are trained, their lives, what they think, the relationships between SDU members and their friends and the pressures they face.

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.

The story follows Hunter and Yat, two new hot shot recruits, who under the watchful eye of their commanding officer, Yuk Pai, rise quickly through the ranks, enduring much mental and physical hardship along the way. Their new found skills are put to the test when renegade SDU member returns from seclusion in Thailand to wreak havoc on Hong Kong and the SDU's most secret missions.

Simon Yam, gang boss, turns himself in to the cops in order to spare his buddies. He spends ten long years in jail during which his no good wife gambles away all his money and raises his little daughter into an ungrateful slutty teen with an attitude. When he returns to his former life. He generously loans money to a high class gal, Cecilia Yip with financial troubles. His wife and daughter leave him. In despair over the mess he has made of his life, he proposes to Cecilia hoping to start over and go straight. In spite of their different class status, the two fall for each other and make a go of her failing factory.

A police inspector becomes obsessed with apprehending a criminal planning a major heist at the Hong Kong Jockey Club in the weeks leading up to Hong Kong's return to China.

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.

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.