Yuen hides out in the apartment of Yip, a bumbling taxi driver and single father of two. With the reluctant help of Yip's computer whiz son, he plays an intricate cat and mouse game with the police, releasing suspicious images of the police being defeated to the media. Superintendent Fong thwarts the effort with tricks of her own, including releasing a sumptuous packed lunch to the numerous squads on duty. After PTU officers were defeated in the first raid attempt, SDU operators were called in to flush out Yuen and his fellow mobsters.