Master Tie Qiao San is an honorable and respected kung fu master, one of the Ten Tigers of Kwantung. He's also developed a bit of a taste for Opium, though, and his habit is getting worse. Meanwhile, a bunch of villains want to get rich by opening an Opium house and getting the population hooked. Master Tie's pupil Gua Si is a bit of a hothead, but at least he can see that the Opium isn't doing his master (or anybody else) any good