The Hunter, the Butterfly and the Crocodile

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

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.

Hong Kong's three notorious thieves who have never met one another before appear in the same restaurant. This leads to a rumour that they are joining forces to pull off something big before the Handover, though this is not something that any of them.

Chan Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.

Triad boss Lung, who has just escaped being killed in an assassination attempt hires the killers Curtis, James, Mike, Roy and Shin for his protection.

Danny is a young cop partnered with Nick, a seasoned but ethically tainted veteran. As the two try to stop a gang war in Chinatown, Danny relies on Nick but grows increasingly uncomfortable with the way Nick gets things done.

As election time nears, current Triad chairman Lok faces competition from his godsons. At the same time, Jimmy looks to increase his business relations with mainland China.

Chan, an articulate senior detective nearing the end of his career, is taking care of the daughter of a witness killed by ruthless crime lord Po. Martial arts expert Ma is set to take over as head of the crime unit, replacing Chan who wants an early retirement.

Following his defeat by Master Ip, Cheung Tin Chi tries to make a life with his young son in Hong Kong, waiting tables at a bar that caters to expats. But it's not long before the mix of foreigners, money, and triad leaders draw him once again to the fight.

A financial tycoon, once a triad member, tries to eradicate the drug market while an old accomplice aims to be Hong Kong's first drug lord.

An operation in Thailand against a notorious drug lord changes the destiny of a Hong Kong Police Department narcotic team. Five years later, a drug dealing brings them together again.

A Chicago cop is caught in the middle of a gang war while his own comrades shun him because he wants to take an irresponsible cop down.