In 1980s Hong Kong, troubled youth Chan Lok-kwun, a mainland refugee, struggles to survive in the Kowloon Walled City by joining underground fights. Betrayed by crime boss Mr. Big while trying to buy a fake ID, he steals drugs from him and seeks refuge in the Walled City, where he encounters Cyclone, a compassionate yet authoritative crime lord.

Loi Bo Watch Company, Hong Kong's esteemed watch boutique, conceals a thrilling secret—it serves as the epicentre for stolen timepieces. Under the icy command of Uncle, a fearless crew assembles: an audacious thief, explosive specialist, lock-picking prodigy, and watch connoisseur. Their target? Tokyo, where they plan to heist three ultra-luxury watches.

A washed-up action choreographer, struggling to find his way in a changing industry, risks everything to stage an epic comeback, and attempts to repair the relationship with his estranged daughter before it's too late.

Ho Sau, an undercover agent, has been working with Yau, a drug lord, for years, but his job and family are in trouble.

The Yau Tsim Mong area, the core commercial area of Hong Kong, has recently experienced a series of robberies. Many jewelry stores in the area have been ransacked by gangsters. Police unit is given the mission to take the gangsters into a custody, but the operation is not so easy.

Gun is a loan shark. Having worked hard for years, i.e. intimidating and threatening his debtors, he musters just enough money to purchase a house for the family. The plan is at risk, however, when one of his debtors dies and Gun discovers that he is not the only creditor. Out of desperation, he asks for his daughter’s help, who is unwilling to be involved in her father’s shady business. The simmering tension causes a rift in the family.