Determined to marry his childhood sweetheart, poor village boy Gam Chun takes on many odd jobs in order to earn the needed dowry money. These odd jobs soon lead him on many adventures.
While on patrol duty, EU sergeant Ling Sun-fung and her team are called to assist a criminal chase. A gun battle erupts and Sun-fung loses her father, who dies from a stray bullet to the head. Sun-fung continues the pursuit, but a strange natural phenomenon suddenly turns her away, taking her back to April 1—three days prior to the incident. Realizing that she has travelled back in time, she uses this opportunity to save her father's life. Village chief "Ditch", an informant for the ICAC, discovers Sun-fung's special ability and teams up with her to investigate a corrupted cop. Unfortunately, their persistent disruption to the timeline causes severe butterfly effects, with unsettling consequences.
Hong Kong traffic E&C inspector To Cheuk Fung is dedicated to his mission. He and his subordinates often go undercover so they can easily prosecute those who speed, drunk drive, and hold illegal licenses. Cheuk Fung is an extremely cold person, serious in speech and manner, but he is strangely close friends with the boisterous Sze Ma of the investigation team. The duo are left speechless when they meet the rookie cop Bui Sam Yau, who they assumed would not be able to withstand Cheuk Fung’s strict demands. But after Sam Yau helps Cheuk Fung dispel a worry that he has kept locked in his heart for many years, the two grow extremely close, forming a pseudo father-daughter relationship. Sam Yau’s satisfactory performance catches the attention of Sze Ma, who convinces her to join his team. Sze Ma has been less than pleased with his subordinate Yiu Yiu, who prefers to do everything by the book and fails to catch up to Sze Ma’s painstaking style of investigating. Meanwhile, a racing gang has been wreaking havoc in the streets, sending out provoking messages to the police. Cheuk Fung and his team are given the light to track them down, but he ends up stepping into a dangerous boundary. A dark haze he has been avoiding once again appears before his eyes.
When police officers, lawyers or triad members have difficult problems that they cannot solve, an underground organization called "The Fixers" will step in. Mastermind Szeto Sam Ping leads the group, consisting of legal expert Leoi Leoi, computer expert Mak Ping On, flirty thief Chan Dai Man and former government official Bak Seon. The team of five uses extraordinary tactics that trend on the borderline to help their clients solve difficult problems. Under the leadership of the courageous and intelligent Szeto Sam Ping, the team is invincible. But when he re-encounters his brother, OCTB officer Mak Hang Zik, whom he has not seen for many years, he finds out that his mother Szeto Yan Yan has dementia. To make up for his past mistakes, he mends his relationship with his family and experiences a family warmth that he never had before. However, the appearance of a mysterious person pushes everything that Szeto Sam Ping has to the brink. The identities of the team members are exposed one after another. Hunted by both the police and triads, breaking with his own brother and left to fight alone, how can Szeto Sam Ping fix his own problem?
Apart from succeeding his father as the owner of the social club, Hau Tak-sze is also a mediator, smoothing things out with unconventional measures for people from all walks of life. Due to a divorce case, he gets to know Mo Sui-yee, who is in the process of divorcing her cheating ex-husband. Through Sui-yee, Tak-sze also becomes acquainted with her sister, cousin, and co-worker. But just as they are becoming close, Sui-yee's ex-husband reappears, and their lives and relationships are driven to the brink of destruction...
Senior correctional officer Man Sheung Shing is stationed at the Stanley Prison and is in charge of prisoner discipline. Clashing with prisoners every day, he is under heavy pressure and must act carefully every step of the way. In contrast, his subordinate Kiu Ching Kiu frequently ignores the rules and has close contact with the prisoners, even developing a relationship with one of them. This causes a lot of tension between them. Yiu Ngoi Ka, who works at the Lo Wu Correctional Institution, has known Sheung Shing for many years. Despite their ten year age gap, she bravely expresses her love for him, but is met with his swift rejection. The ordeals inside and outside the prison cell lead to complicated stories that most people cannot understand. With a large riot waiting to break out, Sheung Shing and his colleagues' lives are put into danger.
Neurosurgeon Cheung Yat-Kin marries fellow doctor Fan Tze-Yu and the two are happily living together, expecting their first child. However, when Tze-Yu is diagnosed with a tumour, her pregnancy becomes medically unsafe and, much to her dismay, Yat Kin doesn't want her to go through with childbirth. This causes a dangerous rift between the two, one that love alone can't bridge. But before the once-happy couple can focus on their marital problems, Yat-Kin also has to contend with pathology specialist Lok Man-Sang, a new arrival to the hospital who simply cannot go without disagreeing with Yat-Kin, and who also gets involved with Heung Chin-Yi, an internal medicine doctor nearly 20 years his junior with her own heartbreak to deal with. Between an unwanted power struggle, the slow disintegration of their marriage, and the small matter of saving lives, Yat-Kin and Tze-Yu have to figure out how to bring their flat-lining marriage-and love-back to the operating table.
Tracy Chu is a Hong Kong actress known for her work with local broadcaster TVB. She was the first runner-up in the 2012 Miss Hong Kong beauty pageant.