Duke Togo (codename: Golgo 13) is a ruthless assassin who's accepted a tricky assignment from an American drug syndicate. His mission is to "rub out" Hong Kong's underworld kingpin. His main obstacle is the relentless Detective 'Smitty' Smith, determined to stop Togo no matter the cost. The result is an explosive adventure through the seamy, violent streets of Hong Kong.

Po-Chih Leong's debut film was a trendsetter in Hong Kong cinema. Shot from the shoulder, the fast-moving world of cops, informers, drug dealers and other crooks are evoked in a very lively and realistic way. The action all takes place in carefully selected locations, among them the walled city of Kowloon and Yuen Long. The film looks like a documentary and evokes the kind of excitement usually seen in news programmes. The story focuses on the battle between two gangs and starts in Amsterdam, where one of the gang leaders is murdered.