The four constables Emotionless, Iron Hands , Life Snatcher and ColdBlood are specially skilled in their own individual super powers. When the four constables of the Divine Constabulary investigate a murder in the suburbs, they unexpectedly stumble on clues to the murder of Emotionless's family 15 years ago.

The reputation of the Four constables survives, but since Emotionless’s departure, there have been changes at the Divine Constabulary. The four Coldblood, Iron Hands, Life Snatcher, rescue Zhuge Zhengwo from An Yunshan’s mountain fortress, then with the Emperor and Di armies, they attack. But An Yunshan absorbs their power, which means the constables and their allies now face their most lethal opponent yet, a nearly invincible kung fu master who won’t stop until he has absolute power...

In the waning years of the Ming Dynasty, the Bruneian Empire offers a rare creature to the nation as a gift. Ocean, a member of the Imperial Secret Police, has been tasked to tame the beast. Though the furry beast appears ferocious on the outside, Ocean discovers that it is kind by nature. Not wanting to turn the beast into a killing machine on the battlefield, Ocean secretly releases the beast into the wild and elopes with Frigid, the daughter of a man executed on false charges.

The story tells the story of a collusion between Hong Kong police and criminals in 1973, under the instigation of the British, they embezzled huge profits and poisoned the citizens. The Governor of Hong Kong established the Independent Commission Against Corruption (ICAC).

In the time of the Qing Dynasty, the Emperor Yongzheng created a secret army known as the Guillotines. It was the job of the Guillotines to protect the Emperor by killing anyone who posed a threat to him or his rule. After 348 successful missions to eliminate their target, the 349th assignment proves to be their last.

Follows an investigator as he prevents a terrorist attack during a symposium held by Hong Kong's Independent Commission Against Corruption. He later finds it has links to human trafficking in Thailand.

Based on real-life crimes that terrorized Hong Kong in the 1990s, Logan (Tony Leung Ka-Fai) is the head of leading a notorious human trafficking gang, abducting the children of Hong Kong's elite. Police forces decide to send in Sky (Louis Koo), a Hong Kong undercover agent whose mission is to infiltrate and save the hostages, all while bringing the gang and their leader to justice.