Red Fists (1991)

Liu Yue Ping reports to the ICAC about a rich 2G Cao Yuen Yuen who bribed officers of the Hong Kong Correctional Services (HKCS) from inside the prison. William Luk decides to infiltrate the prison as an inmate to conduct his investigation, while his partner Ching Tak Ming and Chief Inspector Lau Po-keung back him up from the outside.

In the midst of a violent gang war, a series of misfortunes threaten the fate of a gang boss and his mob.

A career-long undercover Hong Kong cop is sent to Mainland China when his former protégé becomes the primary suspect in a murder.

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.

An undercover cop who invade a drug cartel led by a notorious Thai drug lord. In classic heroic bloodshed fashion, the two develop a bond of brotherhood.

An illegal immigrant from Mainland China sneaks into the corrupt British-colonized Hong Kong in 1963, transforming himself into a ruthless drug lord.

The Hong Kong police is hunting a counterfeiting gang led by a mastermind code-named "Painter" . The gang possesses exceptional counterfeiting skills which makes it difficult to distinguish the authenticity of its counterfeit currency. The scope of their criminal activities extends globally and greatly attracts the attention of the police. In order to crack the true identity of "Painter", the police recruits a painter named Lee Man to assist in solving the case.

An undercover cop struggling to provide for his son and ailing wife, must infiltrate a ruthless gang. But things turn sour when another cop blows his cover and he quickly finds himself battling for his life and the lives of his family.

New recruit Justin Rosa must monitor arms-smuggling cartel member Eddie Flynn — and keep him alive at all costs. When a SWAT team descends on Flynn’s home, Rosa breaks protocol and contacts the gangster directly to save his life. As gunmen break into the Wire Room and chaos erupts, Mueller and Rosa make a final, desperate stand against the corrupt agents and officials who seek to destroy evidence and kill them both.

A young Cambodian man who has been trained to fight for money in his country is hired to kill someone in Hong Kong. He performs the hit and then flees from Hong Kong police, who are wrestling with internal problems of a model cop and his son, who is also on the force and who was told by his dad not to become a police officer.