The story revolves around three members of a police surveillance squad conducting an investigation into a financial investment group involved in criminal fraud. The focus of the plot, however, is actually on the three officers themselves who stumble upon an opportunity to capitalize on information they gathered during their surveillance.
Law was a chauffeur for the rural tycoon Luk, and he was jailed for killing a major land owner in a car accident. It was rumored that Luk was behind the land owner’s death, which gave Luk a competitive edge in the native apartment development deal. When Law gets out of prison five years later, the world has changed. Luk’s corporation has grown more powerful, while Luk’s right-hand man Keung has his own agenda to pursue. But things take a surprising turn. With the help of Law’s prison mate and computer whiz Joe, Law drugs Sean and his brothers in the drinks, then modify their mobile phones for wiretapping, Joe gets acquainted with the materialistic single mom Eva, who turns out to have a dark history with both Law and Keung. Through the eavesdropping, Law realizes Keung’s ultimate plan, which may change Hong Kong’s land development forever.
Roast Pork joins the triad as a young man and ends up becoming a trusted lieutenant of boss Kerosene. However, his true passion is in his successful chain of restaurants, his loving wife, and his two children. So when Kerosene wants to promote his trusted right hand man to the top of the organization as a way to take on his financial debts, it's understandable why Roast Pork would want to refuse. Roast Pork comes up with an intricate scheme with his men that would take himself out of the running, but Kerosene's intervention causes it to fail. When all hopes appears to be lost, lifelong gangster Sparrow is released from jail after serving a 20-year sentence for committing a gang-related murder that earned him a guarantee for the leader spot. However, Sparrow has made his own plans to stay out of the gang, setting off a battle of wits between the two men.
An undercover police officer attempts to take down a drug trafficking syndicate from the inside.
Manson Law, a celebrated stockbroker in Hong Kong, is injured in a car accident. The police, led by Inspector Jack Ho, discovers a military surveillance device in the car wreck. Meanwhile, the wiretapper Joe Szema is unveiling his extensive plan that targets the mysterious financial conglomerate, the Landlord Club. The fate of these three men soon intertwines in the cat-and-mouse game that may bring down the entire stock market.
