In the Line of Duty 4 (1989)

A man is framed for murder by his drug-dealing best friend who covets his girlfriend, leading to eight years in jail and a vow of revenge upon release.

Billy Wong is a New York City cop whose partner is gunned down during a robbery. Billy and his new partner, Danny Garoni, are working security at a fashion show when a wealthy man's daughter, Laura Shapiro, is kidnapped. The Federal authorities suspect that Laura's father is involved with Mr. Ko, a Hong Kong drug kingpin, so the NYC police commissioner sends the two cops to Hong Kong to investigate.

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.

When her husband goes missing during their Caribbean vacation, a woman sets off on her own to take down the men she thinks are responsible.

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

In an effort to get his buddy out of a gambling debt, Jeff agrees to join forces with Judge in a weapons heist. The job goes bad and Judge betrays Jeff. Jeff plots the ultimate revenge on Judge and his followers and it is a question of whether he can follow through with his plan.

The Accident Man is back, and this time he must best the top assassins in the world to protect the ungrateful son of a mafia boss, save the life of his only friend and rekindle his relationship with his maniacal father figure.

Gino Felino is an NYPD detective from Brooklyn who knows everyone and everything in his neighborhood. Killing his partner was someone's big mistake... because he's now out for justice.

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.

An assassin who is fresh from his latest kill becomes stranded in an island, when he inadvertently befriends a female police officer. As the night progresses, the unspoken truth honored by the two sides of the law is broken. After the remains of a body that belonged to a drug lord and syndicate crime leader are found, chaos ensues and criminals ravage the once peaceful streets in a race against time to find the mysterious murderer that's loose and out for blood.