When Zheng Zhou's parents were killed and his sister was kidnapped, he turned into a drug trafficker and criminal, almost ruining his own life. With the help of Hong Kong's notorious dragon triad syndicate, Colombia's largest drug cartel plans to arrange for two tons of cocaine to pass through the US port of Miamiin and eventually smuggled to Australia and China. But when the cartel took a family member of the underworld hostage, the underworld asked Zheng Zhou to save the girl and killed the Colombian drug dealer.