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.
In 1970s Hong Kong, the Independent Commission Against Corruption (ICAC) was formed to bring down the corruption syndicate led by British government officials. One of its top investigators is Senior Investigator Lau Kai-Yuen, who brought down countless corrupted officials. Just as he thought stability and prosperity are within reach, a new era of greed and riches takes him into a new battlefield of corruption.
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.
The chief security officer at a top-secret medical facility finds himself caught in an explosive battle when a young thief and his accomplices steal a groundbreaking curative medicine. After discovering the true origins of the medicine, the officer must decide who he can trust to protect the cure from falling into the wrong hands, and prevent an all-out war from bringing the city to its knees.
After suffering life changing injuries in the line of duty, bomb disposal officer Fung turns his back on the police. But when a devastating series of bombings sweep Hong Kong, the police suspect their former ally may be involved after he is found unconscious at a crime scene. Now faced with memory loss and recalling only fragments of his former life, Fung sets out to uncover the truth and find out who he really is.
When a terrorist who specializes in explosives takes hold of an underground tunnel, he threatens to kill hostages if his demands are not met.
A vigilante serial killer in Hong Kong leaves ominous death notices, prompting the police to launch a special task force to uncover a hidden conspiracy.
Ho Sau, an undercover agent, has been working with Yau, a drug lord, for years, but his job and family are in trouble.
