Ho Chun, a young entrepreneur, is sent to jail. By implementing his philosophy in the business world that money can solve any problems, Ho Chun offers Big Roller, Kin-Tin, Scar and Ho-Ching a considerable amount of money for assisting him to breakout from jail.

Former warden Tang is imprisoned for accepting bribes, while Jun who failed to escape from prison returns to prison to continue serving his sentence. Jun sees that Tang is familiar with the prison and lures him into cooperating in the breakout plan. The two hit it off, and even tried to create trouble and blame it on Big Roller. Jun soon discovers that Tang has other tricks, forcing him to team up again with Big Roller, Mak and new warden Ma to crack Tang`s conspiracy.

Lok, an investigator of ICAC, probe a bank exec's crypto market manipulation. Discovering the bank's ruin and a kidnapping ransom in crypto, Lok suspects a deeper conspiracy and vows to catch the mastermind.

The Yau's brothers are a trio of scammers who make punishing baddies their mission. A misunderstanding leads them to fellow con artists the Lui's sisters, and they join hands to scam a notorious mob boss. Through a myriad of ingenious tricks and disguises, they bring the mobster to justice as romance blossoms swiftly—all's well that ends well.

Liu Yue Ping reports to the ICAC about a rich 2G Cao Yuen Yuen who bribed officers of the Hong Kong Correctional Services (HKCS) from inside the prison. William Luk decides to infiltrate the prison as an inmate to conduct his investigation, while his partner Ching Tak Ming and Chief Inspector Lau Po-keung back him up from the outside.

A police detective must solve a brutal murder to prove his partner's innocence and unearth the truth behind Hong Kong's police force. The investigation brings him to an unlikely collaboration with an inspector from the Narcotics Bureau, whose motives may not be what they seem.

Triad leader Roller and life-sentence inmate Scar maintain the balance of power as the bosses of the prison they're incarcerated at. Life at the prison gets disrupted by the arrival of new inmate Mak, who has run-ins with both Scar and Roller. With things going so badly for him in prison, Mak has no choice but to join in the breakout plot being hatched by Chan. However, Roller and Scar also end up being part of the plan!

Following his defeat by Master Ip, Cheung Tin Chi tries to make a life with his young son in Hong Kong, waiting tables at a bar that caters to expats. But it's not long before the mix of foreigners, money, and triad leaders draw him once again to the fight.

The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals.

Flashback to 1994, before Hong Kong’s handover to China. As the Special Branch of the Royal Hong Kong Police Force prepares to disband, the kidnapping of a powerful business tycoon ignites a dangerous covert power struggle within the force. Caught in the conflict are two officers: the passionate and righteous M.B. Lee and the cold-blooded and ambitious Peter Choi. Four formidable factions — the city’s wealthiest family, the Poon’s, the police, the triads, and the British authorities — are drawn into a deadly vortex of ambition, betrayal, and hidden agendas. As old alliances fracture and new ones form, Hong Kong stands on the brink of a seismic power reshuffle that will cast a long shadow into the future.