After an aspiring comic book artist rescues a young girl from a prostitution ring, he submits to the teachings of an aging kung fu master in order to take on the local mob boss' son: a deadly assassin who's a master of the scorpion kung fu technique.
Cheung Ye Pang (Andy Lau) is a Cantonese detective out to combat opium sellers. Encountering high-level corruption along with close friends being murdered, Pang sets out to stop the dealers.
