A cop who loses his partner in a shoot-out with gun smugglers goes on a mission to catch them. In order to get closer to the leaders of the ring he joins forces with an undercover cop who’s working as a gangster hitman. They use all means of excessive force to find them.

In late 19th Century Hong Kong the British may rule the land, but the pirates rule the waters. One Coast Guard officer is Dragon Ma, who is determined that his beloved Coast Guard will not be made a fool of.