An undercover cop is about to reveal the mastermind behind a drug syndicate when his cover gets blown. Double-crossed Chan Chi-Kit is thrown into a Thai prison under a false identity. But when a guard discovers who he really is, Chan has to enter a dangerous world of lies, corruption and deceit within the prison walls and will have to fight for his survival. Action icons Tony Jaa (Ong-Bak trilogy) and Jin Zhang (Ip Man 3) team up with Hong Kong megastars Simon Yam, Jing Wu, and Louis Koo in this full-throttle action epic.
