When the Imperial shrine world of Cathur was desecrated by Chaos, the fearless Guardsmen of Cadia were tasked with reclaiming it. The Plague of Nurgle, a monstrous plague, has taken deep root on the planet, forcing the Cadians to battle countless hordes of infected zombies. In the midst of the battle, Cadian Regiment Captain Parmenion Thade finds himself in command of the Imperial forces of reconquest. But he is not allowed to know what awaits the Cadia guardsmen on Katura, and how important it is to ensure the victory of the Imperium in this battle...