O记督察王志淙其妻客死异乡，淙悲恸。淙被派往情报科后调回O记，上司已离职，接任的竟是昔日与他争执良多的梁家伟，两人在公事、情场上也成对手！移民的泰突回港，淙以为可与泰一起对抗伟，但其实泰苦被私事烦扰。
Felix Wong Yat-Wah
Gallen Lo Ka-Leung
Sunny Chan Kam-Hung
Gigi Lai Chi
Bonnie Chiu Hok-Yee
Marianne Chan
Joe Ma Tak-Chung
Karen Tong Bo-Yue
Yvonne Lam Yee-Man
Willie Wai Ga-Hung
Josie Ho
Kenix Kwok Ho-Ying
Lau Siu-Ming
Pak Yan
