Famine wracks 2nd century Rome. Food riots rage in the streets, and the emperor struggles to hold on to power in the midst of a burgeoning coup. He recalls the German Legion to Rome to restore order. Unbeknownst to him, a hidden evil slips into the city along with the returning Legion. As civil war boils over and black magics run unchecked, an ancient horror stirs from its dreams, rousing after eons of slumber.