Tactical Unit - Human Nature (2008)

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.

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.

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.

Manson Law, a celebrated stockbroker in Hong Kong, is injured in a car accident. The police, led by Inspector Jack Ho, discovers a military surveillance device in the car wreck. Meanwhile, the wiretapper Joe Szema is unveiling his extensive plan that targets the mysterious financial conglomerate, the Landlord Club. The fate of these three men soon intertwines in the cat-and-mouse game that may bring down the entire stock market.

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

Realising that he will be defeated in no time during a police showdown, a thug shoots himself to force the cops to cease fire and take him to the hospital. In the hospital, he claims human rights to refuse immediate treatment in order to buy time for his underlings to rescue him. The detective in charge sees through his scheme but decides to play along so as to capture his whole gang once and for all.

An undercover DEA agent and his partner embark on a game of cat and mouse with an audacious, and surprising group of thieves – their own rebellious teenagers, who have begun robbing from a dangerous cartel, using their parents' tactics and top-secret intel to do it.

A powerful triad boss has been kidnapped, and the new police superintendent Koo decides to recruit the help of Mann, a former supercop who has since been relegated to back-up duty. Mann has his work cut out for him when he realizes his opponent is Sam, a former cop with plenty of grudges. When Sam takes the fight to Mann’s family, Mann is more than determined to bring down the dangerous kidnapper and his gang.

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.