This action movie is set in the mid-19th century, with a grand and turbulent background.The story revolves around eleven prisoners - who were once deeply trapped in the quagmire of sin, but were given a chance to atone for sin at the turning point of fate: be ordered to defend a fortress to resist the attack of government forces.Only by fighting for the road of birth in the fire of war can their past be forgiven and their souls may be free.This is not only a battle about life and death, but also a human journey that struggles between sin and redemption.