Red Shield (1991)

An ex-marine enforcer must battle his conscience and code of honor when he is forced to do things for the mob.

A group of former mercenaries reunite to plan an epic heist: boosting a truck full of medicine held by a foreign intelligence agency to supply a refugee camp in need. But when they find the truck is actually filled with stolen gold, the band of brothers realize they’ve been double-crossed by one of their own - and putting the situation right will be all out war.

A cop who loses his partner in a shoot-out with gun smugglers goes on a mission to catch them. In order to get closer to the leaders of the ring he joins forces with an undercover cop who's working as a gangster hitman. They use all means of excessive force to find them.

When a Hong Kong police negotiator is informed about the sudden disappearance of his 16-year-old daughter in Thailand, he travels there to search for her whereabouts.

Ko Chow is an undercover cop who is under pressure from all sides. His boss, Inspector Lau, wants him to infiltrate a gang of ruthless jewel thieves; his girlfriend wants him to commit to marriage or she will leave Hong Kong with another lover; and he is being pursued by other cops who are unaware that he is a colleague. Chow would rather quit the force, feeling guilty about betraying gang members who have become his friends.

Two police pursuit drivers, a hothead rookie and his long-suffering, almost-retired mentor, face off against an escape car driver from the latter's past.

Something fishy is going on in the anti-Drug Trafficking Unit of the HK Police, and only a few honest cops know that the corruption goes all the way to the top. However, they must prove their case quickly, and by unconventional means, after they are framed for murder and drug-trafficking themselves. Dodging bullets from cops and criminals alike, the race is on to clear their names, protect their loved ones, and bring their corrupt colleagues to justice.

Scientists create a genetic clone of a serial killer in order to help catch the killer, teaming up with two cops.

Maverick cop Orin Boyd always brings down the domestic terrorists he tracks, but he ruffles feathers with his unorthodox techniques -- and soon finds himself reassigned to the toughest district in Detroit. When he discovers a group of detectives secretly operating a drug ring, Boyd joins forces with an unlikely ally -- gangster Latrell Walker -- to bring down the rotten cops.

Vice detective Bob Hightower finds his ex-wife murdered and daughter kidnapped by a cult. Frustrated by the botched official investigations, he quits the force and infiltrates the cult to hunt down the leader with the help of the cult’s only female victim escapee, Case Hardin.