Sam-yuen is requested by Interpol to gather incriminating evidence on Shun-chiu’s money laundering activities. She team up with CCSIU to look for key witness Bonnie. But On-na’s unsatisfactory shooting skills indirectly result in Bonnie being taken away by Yuen Ying people. There are no more clues to be found. Sam-yuen scolds On-na and Hon-sam for being sentimental. On-na feels lost. Sha-doi is apprehensive as she feels her collaboration with Yuen Ying involves wrongdoing. Sha-doi tries to decode content of the USB drive that has been stolen from Shun-chiu. She eventually finds incriminating evidence against him. However, right after the files are decodes, Sha-doi fails to contact Hon-sam. On-na drowns her sorrows. She angrily goes to the office and wants to question Sha-doi. But she realizes Sha-doi is unconscious. On-na also passes out on the spot as she is assaulted.