In the War-torn future of the 41st millennium, the Sabbat Worlds Crusade has begun. With the massed ranks of the Imperial Guard hard-pressed by the evil forces of Chaos, mankind must prevail - whatever the cost in lives. Commisar Ibram Gaunt has vowed to lead the men of the Tanith First-and-Only safely through this campaign, but they must evade the treacherous scheming of rival regiments just as much as the lethal firepower of the enemy.