After the case, Inspector C. K. of the Immigration Department is suspected. the ICAC secretly carry out investigation but get no further information. YAN, NAY and LIN decide to find more information in BOB's house. However BOB lusts for NAY's beauty. He drives her to the peak. Luckily HIN saves her. NAY finds a portable computer under the seat of BOB's car. they realize that BOB communicates with C.K. through computers. At last she gets C/K/'s information from BOB's computer. From the information, they find BOB's records of drug smuggling. Moreover they find that BOB has a sushi bar which proves that he has unknown income sources. BOB arranges the three girls to smuggle drugs for him but their plan is spoiled by the police. LIN is shot and her shoulder gets hurt.