After a lost battle, Kim Ho, a once-proud swordsman for the king, is suddenly reappointed as a lowly prison guard. Working overnight on his first day, he wakes up to find that five top fighters from the rebel force that fomented against the king have snuck into the jail to break out their captured leader. Kim vows to stop them at all costs and soon finds himself thrust into a gauntlet of nonstop martial-arts death duels. The Age of Blood breathes new life into the period action film—and more than lives up to its title.