When a microfilm with evidence against a criminal organization falls into the wrong hands, two Hong Kong policewomen must go undercover to recover it.

A disc with the names of Triad members is taken away, and when the gangsters try and find about where it is, they kill the only person who knows the hiding-place. So, what can be done now to retrieve the disc? The Hong Kong police are looking for the murderer and the disc, but Inspector Yeung has to realize her fiancée Ho Chan is one of the gangsters! The trace of the disappeared disc leads to Malaysia, where the victim's girlfriend lives...

When he is framed for being a spy because of his friend's illegal activities, David must escape from police, CIA, and assassins with the help of his cousin.

In the Line of Duty 4 (1989) is an action-packed crime movie that follows the story of a talented CIA agent as she fights to protect witnesses from dangerous criminals. It features thrilling martial arts scenes and explores the complex world of international espionage.

Madam Yeung is assigned to investigate a serial murder in a Philippine cargo ship anchored in Hong Kong.

Though policewoman Hsie Wan-chin (Cynthia Yang Li-ching) is merrily planning for her wedding with fellow cop Wilson Tsiang (Lawrence Ng Kai-wah), he is having an illicit affair with her best friend, May (Moon Lee). When Wilson tries to break things off, May doesn't take it well. When she learns that Wilson and Wan-chin are moving to England, she completely loses it.

Hong Kong policewoman Yeung teams up with Taiwanese and Mainland officers to take down a gunrunning ring.

When a group of terrorists threatens the city, a team of skilled martial artists and gun experts must come together to stop them. Along the way, they face intense fights, car chases, and a relentless evil man.

In the Line of Duty 3 is an action-packed movie set in Hong Kong. The story revolves around a brave and determined female police officer who goes head-to-head with a powerful criminal organization. As she delves deeper into the underworld, she uncovers shocking secrets and faces life-threatening challenges. With thrilling action sequences and intense suspense, this movie keeps viewers on the edge of their seats.