After suffering life changing injuries in the line of duty, bomb disposal officer Fung turns his back on the police. But when a devastating series of bombings sweep Hong Kong, the police suspect their former ally may be involved after he is found unconscious at a crime scene. Now faced with memory loss and recalling only fragments of his former life, Fung sets out to uncover the truth and find out who he really is.
Ho Sau, an undercover agent, has been working with Yau, a drug lord, for years, but his job and family are in trouble.
When Hong Kong is rocked by multiple gruesome murders, the police forms a task force to investigate.
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.
