The brutal war for Cadia is decided, as Lord Castellan Ursarkar Creed and the armies of the Imperium fight to halt the Thirteenth Black Crusade and prevent a calamity on a galactic scale. Under almost constant besiegement by the daemonic hosts pouring from the Eye of Terror, Cadia stands as a bulwark against tyranny and death. Its fortresses and armies have held back the hordes of Chaos for centuries, but that grim defiance is about to reach its end....