The remarkable true story of Billy Moore, a young English boxer who was imprisoned in two of Thailand’s most notorious prisons. He quickly ends up in a scary world of drugs, gangs and violence. But if the prison authorities allow him to take part in the Muay Thai boxing tournaments there, he realizes that this might be his chance to escape this hell. Billy embarks on a ruthless journey of action, from one brutal battle to the next. In doing so, he stops for nothing or nobody to stay alive on the way to his freedom.