The Mysterious Heroine (1962)

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.

In this Hong Kong variation of Robin Hood, corrupt officials of a Chinese village are robbed by a masked bandit known as "Iron Monkey", named after a benevolent deity. When all else fails, the Governor forces a traveling physician into finding the bandit.

When soldier Robin happens upon the dying Robert of Loxley, he promises to return the man's sword to his family in Nottingham. There, he assumes Robert's identity; romances his widow, Marion; and draws the ire of the town's sheriff and King John's henchman, Godfrey.

Star Chow, an officer in the elite police unit, resigns when he is made a scapegoat for a botched investigation. He goes undercover at a school to complete the case and realizes a bumbling detective is also undercover as a student.

On a mission deep in the Bolivian jungle, a team of elite commandos finds itself on the receiving end of a lethal betrayal. Now presumed dead, the men join forces with a mysterious operative named Aisha to hunt down their enemy and even the score.

Robin Hood fights nobly for justice against the evil Sir Guy of Gisbourne while striving to win the hand of the beautiful Maid Marian.

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.

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.

Drug lord Dwayne Gittens rules Cincinnati with an iron fist. No wonder he's known as "God" on the streets. Determined to break Gittens' stranglehold on the city is undercover cop Jeffrey Cole. But as Cole takes on an assumed identity to penetrate Gittens' criminal empire, he makes a disturbing discovery -- he kind of likes being a gangster.

After being dumped by his fiancé, heartbroken Hong Kong police officer Fallon Zhu gains 200+ pounds. His superiors demote him to the job of escorting convicts to Japan. When a convict in his custody mysteriously dies, he must team up with citizen Thor to solve the mystery.