Master assassin Duke Togo—codenamed "Golgo 13"—is hired by an American crime syndicate to kill Chou Lei Fang, a powerful member of the syndicate's Hong Kong branch who has been selling their drugs through his own channels. At the same time, he has to keep an eye out on Smith, a hard-boiled Hong Kong detective who is hell-bent on taking down Chou and his drug-manufacturing organization.