Since YAU-CHING has died, YAU-KIT wants to take his place in the Investigation Unit of ATF but KO WAI rejects his request. YAU-KIT, SUK-FAN and YAN-MEI visit YAT-KA together. They discover that YAT-KA wants to leave Hong Kong after losing her love. YIP TING installs a CCTV at KIM-HANG's office secretly and she discovers a secret room there. YAU-KIT worries that the Scaredy Bird will kill the injured terrorist. He seeks help from YAN-MEI and arrests the suspicious person successfully. KO WAI finally approves YAU-KIT's application to join the Investigation Unit. YAT-KA discovers the video prepared by YAU-KIT long time ago and she is deeply touched. YAU-KIT decides to take care of YAT-KA for YAU-CHING...