Danny Lee is a retired cop investigating the murder of his wife, witnessed only by his son.

Lee Ying, who is the chief inspector of Regional Crime Unit, is newly promoted to Royal Hong Kong Police Cadet School as Deputy Commandant. He confronts a group of youngsters of different social backgrounds, turning them into self-disciplinary and self-contained young men.

A retired cop is summoned by his former boss to save his kidnapped son from the hands of a deadly Japanese triad.

A love triangle between a singer and two men; one good, the other evil.

Chow is an undercover cop who must befriend former triad kingpin Chan Wai-Man to investigate a brutal diamond heist. It turns out that Chan is innocent of the theft, but not of the fencing of the stolen goods

Hong Kong police officer Mina Kao marries Huang Tsung-Pao, who is a member of a law enforcement dynasty. His father and his many sisters are also officers, and the eldest sister Chia-Ling is one of the highest ranking women in the police department. When a Vietnamese gang begins a rampage through the city, the women must overcome their suspicion of one another to bring the criminals to justice.

Andy Lau stars as a juvenile delinquent trying to escape life in the ghetto. After releasing from jail, he is bullied by a local tyrant, Ma Chao-wei, at last his jail mates help him to settle the problem. However, Ma takes revenge on him. His friendship with a rich jail mate (Ho Kar King) is his only way out!