While the Imperium's forces are stretched thin across the galaxy, the Iron Warriors seize their moment to dominate the Cadian Gate—a war-torn pocket of space where scattered Imperial defenders cling to survival after Cadia's fall. For Primarch Perturabo, controlling this strategic region is critical to his grand design. Standing between him and victory: the heavily fortified forge world of Agripinaa, a prize that will determine the fate of the entire sector.

Immerse yourself in the Cadian Gate conflict with this comprehensive expansion set for Warhammer 40,000. Packed with rich background lore and cutting-edge rules, it transports you to a brutal new warzone where the fate of the Imperium hangs in the balance. Featuring new Detachments for Chaos Space Marines, Space Marines, Imperial Knights, Adeptus Mechanicus, and Chaos Knights, plus an entire rulebook dedicated to apocalyptic-scale warfare where colossal armies unleash their most devastating arsenal, this set delivers everything you need to command forces across the ravaged Cadian Gate.