Wong Lung (Bruce Le) is a drug kingpin who wants to get out of the business. But when his boss Marcos blackmails him, Lung rejoins the drug trade and goes undercover to supply the cops with information about a new drug route going through Mainland China. And the place where all the drugs are coming from is a small village named the "black spot" run by a General and his small Army. To show he is still a good guy, he saves a young boy's life and befriends his family. He even gives the boy a whistle shaped like a butterfly. Awwwww. Too bad we all know what that means in HK cinema terms (make friend with child = child run over/maimed/shot/etc.) But as his stay progresses, Lung notices that the villagers aren't the bad guys; they are just harvesting the opium to make money because they are so poor. It is the sadistic General and his men who are evil and they must die!