The Great Crusade has already swept through half of the Galaxy, and a million human worlds that have accepted the power of Terra are learning to live according to the laws of truth and reason. But unprecedented success comes at a price. According to rumors, the Emperor decided to abandon the Crusade and appoint one of his primarch sons as his successor. At the same time, the human empire Gardinaal irreconcilably rejects the Agreement. Ferrus Manus, having subordinated the leaderless army of the Ultramarines, the Emperor's Children and the Thousand Sons to his legion, will punish the disobedient in such a way that even the Lord of Men will take notice.