In 2004, a member of the triad known as Jizo faced dire consequences after being apprehended for drug dealing at his nightclub. His boss, Yu Nam, decided to punish him by enlisting Yu Shun-tin to sever Jizo's fingers and expel him from their organization. A traumatized Yu, who had witnessed the devastating impact of drug addiction on his father while growing up, abhors drugs and aims to leave the Triad behind to embrace a life of integrity.
Fast forward to 2019, and Yu has transformed into a billionaire tycoon and philanthropist, renowned as the "Finance Whiz." His success comes alongside his marriage to lawyer Michelle Wai, who has become both his partner in life and business. However, Jizo has evolved into one of the most formidable drug lords within the Hong Kong underbelly.
In a shocking turn of events, Yu learns about the existence of a long-lost son from his late ex-girlfriend, May. When he travels to the Philippines in search of his son, he is devastated to witness him take his own life following a drug overdose. This tragedy ignites a fierce determination in Yu to obliterate the drug trade in Hong Kong. Utilizing his immense wealth and former triad affiliations, he orchestrates a series of lethal strikes, inciting chaos within the drug realm and throwing its players into disarray.
As police chief inspector Lam Ching-fung and his team tackle the escalating drug raids, they unveil Yu's vengeful plan following the loss of his son. Jizo, realizing Yu is behind the turmoil, confronts his former ally and exposes to Inspector Lam Yu's checkered past with the Triad.
In a daring move, Yu places a staggering bounty of HK$100 million on the head of the top drug dealer in Hong Kong, sending shockwaves throughout the criminal hierarchy and the broader society. Because Yu does not name a specific target, law enforcement struggles to take action against him. In his fear of retribution, Jizo surrenders to the police. Thus, Inspector Lam finds himself in the unexpected role of protector rather than prosecutor. In a twist of fate, Jizo also sends out a hit on Yu, but tragically, the assassin mistakenly kills Michelle instead.
Devastated by his wife's untimely demise, Yu embarks on a relentless crusade against Jizo, eventually cornering him in a murky subway tunnel. The situation escalates into a chaotic three-way shootout as Inspector Lam arrives on the scene. In the end, both Yu and Jizo meet their ends, while Inspector Lam survives. In a poignant tribute to Yu's legacy, he uses the bounty to establish a center dedicated to helping children whose parents fell victim to addiction.
