The police suspect that MAN is collaborating with XIAO and they ask MAN to take leave for internal investigation. KIU tries to help MAN but they end up quarreling with each other. MAN stays in the comic book shop for the whole day and he eventually goes to stay in YOU’s place. KIU and BO are transferred to the hiking team. They meet a little girl on the hill while patrolling. They help her find her mother but they later discover that her mother is an illegal immigrant… XIAO meets up with FOOK T...