After framing CHEUK HOI, the spy in the police force takes over his investigation unit. The spy discovers that the undercover officers' information is protected by password in the computer and he threatens CHEUK HOI to give him the password or he will harm MEI-YIN. CHEUK HOI is brought to the investigation unit but he escapes eventually. Everybody knows that CHEUK HOI is missing and people from the triad organization try to search for him by offering huge reward. After meeting with SIU-KA's foster mothers, FOON-HEI believes that SIU-KA is her daughter and SIU-KA discovers it accidentally. SIU-KA asks MUK-WING to help checking the identity of the 7-seater van owner who arrived at her foot spa earlier. She discovers that the owner is a woman called HEI-MEI. SIU-KA and KA-KEUNG sneak into HEI-MEI's office to carry out investigation but HEI-MEI's subordinates capture them.… ...