To avoid all the strife caused by the gangland power struggles, Yuk Wan-lung and his elder sister Yuk Kiu-fung lead a quiet life, running an inn. Unexpectedly, Wan-lung is determined to take part in the New Hero Contest, seeking to win back his ex, Ngai Bing-bing. But when Wan-lung exposes a scandal involving the East Wing imperial guards, he is incarcerated and his sister must find a way to set him free.

CID officer Man Kiu-Pak is a man who achieves meritorious deeds by fluke and is promoted to inspector. Opportunistic reporter Gai Wing-Yin appears to be a blissful wife, but she is actually troubled by finances and is stuck between her daughter and second husband. The honest, dumb thief Cheung Hak works hard to be a good person but is forced to do desperate acts for a living. When Cheung Hak and his associates carry out a kidnapping, they abduct the wrong person. This abduction causes these characters' lives to converge, but when more lives are lost, the kidnapping case grows increasingly complicated and secrets gradually come to the surface.

The Hong Kong Airport Special Police Unit (ASU) is a special police force responsible for maintaining public and aviation security, counter-terrorism, key personnel protection, disaster support and many other areas. Encountering different situations on duty, they see the joys and sorrow of life that make them reflect on their own lives. With every step forward, they establish a sense of mission as the airport security police.

The characteristic of the Miscellaneous Enquiries (ME) unit is "miscellaneous"! Their investigations include nuisance, liquor licenses, non-criminal deaths and other uncategorized cases. ME Inspector Ben Wong enjoys the slow-paced life. When he meets the impatient and pregnant Mandy Wong, they naturally clash. Former undercover C Kwan has been lazy on the ME unit for many years. When he re-encounters his first love Jacqueline Wong, will it reignite his spirit? As the MEunit handles bizarre cases, there is tears among laughter.

After reaching a point of no return in his life, Ngo Pak Yin grows power-hungry. Through his aggression and strict grasp of the law, Pak Yin paves his way to becoming one of Hong Kong’s top solicitors. But power often leads to blindness. Pak Yin becomes ruthless and inconsiderate of others, leading to his wife Rebecca Tsang Bo Lam, who had quietly supported him through the years, to grow more distant. She realizes that they no longer share the same values, and is heartbroken. During this time, she grows closer to Patrick Lui Wing Hang, who opens up a window into her inner world. Patrick is also a solicitor, but he is neither as famous nor as abled as her husband. Despite these setbacks, Rebecca falls in love with Patrick, who seems to be the only person who can fulfill her troubled heart. She makes the executive decision to leave her husband, but is suddenly attacked by a mysterious man. She suspects that Pak Yin had hired someone to attack her. Pak Yin’s life is at an impasse once again. Finally realizing his wrongdoings, Pak Yin decides to change for the better. But this time, he’s changing while carrying a heart of gold.