Billy Moore (Joe Cole (actor)), a British national with a chequered past comes to Thailand with an intent for living well. After finding work as a boxer and stuntman he falls back into drug use, and is charged with possession of stolen goods and a firearm. He is sent to prison in Thailand, where he finds himself quickly caught up in violence unseen in other prisons, and spends his days chasing addiction and the violence that is typical in Thai prison life. With a desperate need to fight again and battle his demons with addiction and himself, he agrees to fight in Muay Thai tournaments to earn his freedom.