Watch 123Movies. Three brothers were once destined for glory in the ring until their lives started to fall apart. Kaïs is in prison and Samy is dying while Abel, the youngest, a rising boxer, walks away from everything and heads to Thailand. Outwardly, the reason for Abel’s trip is to compete in an underground tournament known as the Prison Fight, pitting inmates against outsiders in a fight for their freedom, but his true motivation is to get his brother out of jail.