Two detectives who are up to their necks in trouble and in each other's face, as they try to shut down a drug-trafficking scheme that could be connected with international ties to organized crime. But in the midst of their investigation, innocent immigrant dock worker Luk Wan-Ting gets caught up in the mix when he witnesses the murder of an intelligence operative and is framed for the crime.

White Dragon must get a list with the names of rebel supporters to Prince Ma Tung, the leader of the rebellion. Trying to stop him in his mission is the evil Prime Minister, who naturally wants the list in order to crush his opposition. Adding another complication is the fact that Ma Tung wants to kill White Dragon in revenge for the humiliation Tung's father suffered in a duel against White Dragon years earlier.