Dragon is now transferred to be the police head of Sai Wan district, and has to contend with a gangster kingpin, anti-Manchu revolutionaries, some runaway pirates, Manchu Loyalists and a corrupt police superintendent.
Modern grave robbing "archeologists" find perfectly preserved specimens from the past of a man, a woman, and their child. Unbeknownst to the scientist and his two bumbling assistants, these are vampires immobilized only by the paper spells pasted on their foreheads. While transporting the child to a buyer, its spell blows off and the vampire child escapes and befriends some local children. Eventually, the parent vampires are also awakened and escape, but by now the local herbalist is on their trail to destroy them.
Officer Chan Ka Kui manages to put a major Hong Kong drug dealer behind the bars practically alone, after a shooting and an impressive chase inside a slum. Now, he must protect the boss' secretary, Selina, who will testify against the gangster in court.
