Sharla Cheung stars as Peggy, a CIA agent who joins the Hong Kong police in chasing fugitive convict Tong Yiang (Shing Fui-on). Tong is quite the hot property, since he has a stolen computer chip which not only the CIA but two rival criminal organizations want to get their hands on very badly. One of the gangs is headed by a corrupt business tycoon named Fok Chi-kien (Eddy Ko), who grabs Tong Yiang but is assassinated by the henchmen of the other gangleader, Long Hair (Gordon Lau) before he can get the chip. Long Hair takes off for Thailand with the chip, and Peggy joins her new Hong Kong partners in tracking him down.