"Akun (played by Andy Lau) has monopolized the heroin market for many years. Although he regards Ali (played by Daniel Wu), who has been following him for more than 8 years as his successor, Akun has always acted cautiously and never revealed the location of the "warehouse" or processing plant. I haven’t met any other “colleagues” either. Akun plans to hand over all the management of his business to Ali, and Ali gradually..."