In the quadripartite drug market in Hong Kong, Dizang (by Louis Koo) gradually expands across the border, followed by a chain of dog-eat-dog events which shock and bring the whole trade on high alert. On the other hand, Tin (by Andy Lau), who hates drugs like poison because his father died of drugs when he was young, now a financial tycoon and a philanthropist, is offering a 100 million bounty to eliminate the No.1 drug dealer in Hong Kong, which causes a stir in society. Policeman Fung (by Michael Miu) has been collecting evidence for arresting Dizang, helplessly, now he

needs to protect Dizang instead due to the bounty. The standoff between the three can only be ended with a final battle.