The Iron Fortress on Mount Thelgrim once stood proudly overlooking the Urth pass and defending Falladir's beloved Groman colony on the Thelgrim peninsula. But now the Fortress has fallen to Llovar's forces of darkness. The knights who one held the fortress, the Groman Guard, have been forced to retreat.

The Guard have taken refuge in the besieged city of Nonalli. Led by General Cordwain, the knights fight a desperate battle against overwhelming numbers. They are determined to break the siege and re-take Mount Thelgrim... or die trying.