FOON-HEI wants to go travelling with SIU-KA and her foster mothers. SIU-KA discovers that FOON-HEI actually wants to run away. In order to carry out investigation on the land resumption project, KA-KEUNG requests to collaborate with HEI-MEI. SIN-CHING discloses her whereabouts carelessly and CHEUK HOI runs away with her. Luckily, SIN-YAN tries to help them by distracting the police. When FOON-HEI goes to the foot spa, an attacker suddenly arrives with a knife. With continuous efforts, SIN-CHING finally gets the criminal evidence from the spy's computer. CHEUK HOI brings the criminal evidence to the lecture hall where the spy is staying. SIN-CHING is worried and she seeks help from SIN-YAN and the other undercover officers.… ...