TIN invites POK and HANG to the re-opening ceremony of one of his buildings which was destroyed in the explosion some time ago. POK discovers that there is something wrong with the stage setting when TIN is about to perform the ribbon cutting. With POK’s timely warning, HANG manages to stop TIN and saves him from getting an electric shock. POK has got a strange email but does not take it seriously. HANG goes out for a drink with his mates. Knowing that the pub owner is marrying a floozy, HANG and his friends become so surprised and even start to question his decision. HANG’s friends doubt if KA, just another notorious floozy, is an ideal wife for HANG, a smart Chief Inspector-to-be. HANG and KA have dinner together, during which KA says she has overheard his conversation with his mates inside the pub the other day. To please CHU, YEE offers to take her to a famous Chinese medicine practitioner for a check-up……

The police have found some of CHU’s remains, which make them believe that she has been killed already. HANG’s staff have packed up their things and are about to leave POK’s mansion. LAI catches POK weeping inside his bedroom. She feels for POK and tries to console him over the death of CHU. The kidnapper has sent YIN a box of CHU’s belongings. POK discovers that CHU’s watch strap has been engraved with a jumble of strange words, based on the clues in which, he finds a mysterious website and a clip of TING killing a girl in bath. Eager to find out what is going on, POK asks TIN out for a meeting at his laboratory. LAI learns about a strange happening from ON, which makes her believe that POK may have been at risk of harm… POK gets an anonymous SMS revealing CHU’s whereabouts. LAI finally manages to locate CHU and save her life……

POK means to argue with HO on the Web, allowing the police a little more time to trace the suspect’s whereabouts. HANG and the Special Duty Unit manage to locate the hut where HO has been hiding, but an explosion occurs as soon as they step inside. HO has held POK hostage and is resolved to perish with him… LAI goes to visit POK who is lying unconscious in the hospital. She keeps talking to the scholar in a cheerful tone, hoping that this will help awaken him from his coma. HEI has won the Hong Kong Mathematical Olympiad for Primary Schools. When interviewed on TV, the boy gives special thanks to Yaumatei Fresh Fruits Wholesale Market School and speaks of his pride in it. POK asks to get back with LAI but is rejected immediately. Knowing that KA is returning to Singapore, HANG rushes to the hotel to see her. To convince KA of his sincerity, he has even tendered his resignation……