The last roar of a dying god ruptures the boundary between worlds, opening a portal to the Realm of Chaos. From this maelstrom, the four Ruinous Powers – Khorne, Nurgle, Tzeentch and Slaanesh – emerge, spreading darkness and despair. The stern warriors of Kislev and the vast empire of Grand Cathay stand at the threshold, as a vengeful Daemon Prince vows to destroy those who corrupted him. The coming conflict will engulf all. Will you conquer your daemons? Or command them?