Michael Miu

A biological weapon deal has turned into a hostage situation. The Special Duties Unit receives orders to take down the criminals. However, the seller's identity remains a mystery and terrorists are on the move. An earth-shattering conspiracy to develop a super virus is brewing.

Bao Seed engages in drug trafficking in Thailand. Unaware of Ah Deng's whereabouts, he is shocked to learn that she has died and promises to avenge her. Bao Seed continues with his undercover work under his new superior Madam G. After serving time, Cheuk Hoi is released from prison and opens up a coffee shop, yet trouble continues to follow him in spite of his efforts. Ngai Tak Lai is a cop tracking on Bao Seed's tail. In truth, he is buoyed by an ulterior motive.

An unknown group is behind a series of crimes in Hong Kong, China, putting the safety of the city and its citizens on the line. A special task force, A Team, is formed under Lo Ga Sing, the captain of the Flying Tiger, with selected the elite from the police force as members. The team consisted of the head of operation Wong Gwok Dong, head of investigation Jyung Men Long , heads of intelligence Ding Hou Jin and intelligence members Mou Yat Man, and head of forensics Jiu Ga Nan. The duty of the special task force is to fully eradicate the criminal conspiracy. ~~ This installment is unrelated in terms of character identities to the prequel.

When he was younger, Ko Yat Tai accepted a mission to infiltrate the triads as an undercover agent. The triad leader's daughter, Lou Man Na, fell in love with him at first sight. Although Ko Yat Tai already had his heart set on the simple Lee Ying Lan, he pretended to be with Lou Man Na in order to solve the case. As a result, he quickly rose through the ranks in the triad. One time, during a fight between triads, Ko Yat Tai eliminated Lou Man Na's triad rivals, but Lou Man Na's fate remained unclear. Ko Yat Tai's good friend, Nip Yu Hong, knows about his affair with Lou Man Na and their infant son Ko Ka Long. Ko Yat Tai brings Ko Ka Long home, and Lee Ying Lan also gives birth to a son Ko Ka Chu. Because of the sin that he represented, Ko Ka Long did not grow up with love from his father. But Ko Ka Chu also did not get spoiled by Ko Yat Tai and instead had to go through many hardships. The half-brothers accumulate a number of grudges growing up. Each of them also coincidentally develops a father-like mentor relationship with Nip Yu Hong. During a grand promotional ceremony, Ko Yat Tai, having achieved the rank of Superintendent, is happily preparing to receive this honour but unknowingly steps into a revenge plot that is thirty years in the making...

In 2010, Cheuk Hoi secretly travels to Bangkok to conduct a drug operation with his undercover agents in Thailand. As they finish their mission and are about to leave Thailand, an explosion causes all of Cheuk Hoi's undercover agents to die in a sea of fire. At the same time, Cheuk Hoi's good friend, CIB Inspector Lai Sir, is killed for unknown reasons, leaving Cheuk Hoi in charge of a female cop who is not yet officially an undercover. Cheuk Hoi knows that Lai Sir still has undercover agents whose identities have been deleted. To learn the truth about Lai Sir's death, Cheuk Hoi must find all of the undercovers. He and Suk Mui begin to search for the undercover agents.

Hong Kong's Criminal Intelligence Bureau Chief Inspector, Cheuk Hoi, probes his colleague's mysterious death and the disappearance of five crucial undercover agents. These agents hold vital secrets, compelling Cheuk Hoi to uncover the truth. Among the undercover agents, Ting Siu Ka seeks her true identity by infiltrating the triads, forming a complex relationship with Sit Ka Keung. However, complications arise when Cheuk Hoi abruptly halts her mission, involving the Independent Commission Against Corruption's Mok Sin Yan. As the triad leader Tam Foon Hei is released, Lin Ho Kan's tactics intensify the police-triad showdown for justice.

This funny and lighthearted series is about two long lost twins, 'Little Fish' and 'Perfect Flower', each with his own unique quality, and how they end up in a hostile situation in the end.

It is set in the late Song Dynasty (12th century), when the failing Song government was slowly falling prey to the northern tribes.