Chow is an undercover cop who must befriend former triad kingpin Chan Wai-Man to investigate a brutal diamond heist. It turns out that Chan is innocent of the theft, but not of the fencing of the stolen goods

The Unmatchable Match

The Playgirls, a band represented by the diminutive rock enthusiast Teddy, are just performing in a bar when trouble starts. He finds a dying girl in his van; she is a spy who had just taped a film negative onto the oblivious Teddy’s poster. Two Japanese hitmen hired to get her and the negative believe that Teddy is a spy also and start to follow him. A beautiful woman from the same organization, who later claims to be a double agent, is also after him, and he is easily victimized by her games - despite protection offered to him by a rival organization.

To Spy with Love!!

During an operation with a master criminal, an undercover cop fails his mission because he was shot by an uniform officer. His superior suspects he has become a bad seed and refuses to allow him to rejoin the force. In order to prove his innocence, the cop decides to follow the thief to the Sino-Russian border on an arms struggle deal, but on the way they are chased by Mainland police. During the escape the cop and the criminal become friends. When they return to the Hong Kong border, the police awaits on the other side and...