In a high-stakes corruption case, ICAC Principal Investigator Kong Kin-chau edges closer to the truth within a listed company. Chief Investigator Szeto Kai-man and Assistant Investigator Ting Sum go undercover as a father-daughter duo to gather evidence against a construction firm, while Firearms Team member Chui Ho-nam and Assistant Investigator Chung Hau-ling help secure crucial intel. Meanwhile, Senior Investigator Ng Hok-bun exposes corruption within the prison system. Despite differing views and setbacks, the team remains steadfast in pursuing justice in the secondary school engineering scandal.
Public Relation expert Heung Kwong-Nam (pun, meaning "Hong Kong men") is a renowned saviour to the single ladies in town. He is able to help many single female clients find a happy marriage by building confidence. Without charging money, he is able to find purpose in helping these women find love and themselves.
Newly joined Account Officer Sing Fa-Lui (pun, meaning "unmarried woman") is hired by Mak Dik-Man as Kwong-Nam's rival. At first, she is an overly-confident girl that sees Kwong-Nam and his group (Super Senior) as lazy and good-for-nothing. But she eventually grows to see the good in Kwong-Nam and his methods and they end up falling love.
Former actress Lam Choi-lam sacrifices her career to support her family abroad while her husband, celebrity Ding Chung-yiu, gains fame for his "wife-loving" image. When she secretly returns to Hong Kong, she discovers his love was just a facade. Determined to reclaim her worth, she attempts a behind-the-scenes comeback, but faces rivalry and marital turmoil as past tensions resurface.
After a radical change in life, Sze Sai-lun becomes dispirited with the political world and spends most of his time travelling around in search of fun. Along the way, he meets a new spirit medium, Ng Kwan-yau, who somehow gets caught up in a mysterious murder case. With fortuitous assistance from the pillow spirit Ngau Tai-lik, he is able to crack the case and prove Kwan-yau’s innocence. Sai-lun has his confidence back and pledges to continue his fight for justice. As time progresses, Sai-lun and Kwan-yau get to know each other better and gradually fall in love. Amidst the various challenges of his new life, Sai-lun realizes that Kwan-yau seems to have something to hide and that there is a malicious plot behind their relationship. Knowing that the couple have fallen out, Sai-lun’s mother has found him a new wife, Luk Siu-tip, who seems to come with ill intentions. Sai-lun is plunged into a complex web of intrigue and things seem to be getting on top of him…
Renowned restaurant owner Zhang Guan has an affair with dancer Zhu Fenghuang. His brother Zhang Yi replaces him as Zhu's lover. Their fake relationship becomes real, causing a rift. Meanwhile, Zhang Guan's son and brother compete for Mei Jingjing's love. Zhang Jiashu schemes to remove Zhang Yi and Zhang Jiale from the family restaurant. They open their own eatery, which thrives. Eventually, they reconcile and save "Guanyue Village," finding redemption as the "Ah Er" family.
Matthew Ko, Aircrewman Officer II of the Government Flying Service (GFS), and Benjamin Yip, Pilot I, frequently work together. While Benjamin flies an aircraft, Matthew rescues people. Matthew and Benjamin are appointed to train Aircrewman Officer III, Sandra Si, and Cadet Pilot, Kelvin Chiang. Both fresh graduates from training school. Meanwhile, when Matthew's girlfriend Carrie Hong suddenly loses her memory and seeks comfort from Benjamin, it causes a rift between the two colleagues. GFS staff are always ready to dive into the water and climb up mountains to save lives. How do they tackle their own challenges?