Without warning, the corrupted Dragon Aspect, Deathwing, erupts from the stone heart of Deepholm, the domain of earth within the Elemental Plane. Jagged fissures are torn across the earth, and monstrous waves pummel coastal regions. From Thousand Needles to the Blasted Lands, the surface of Azeroth is reforged through violent upheavals. Now, the Horde and the Alliance must defend their homes against Deathwing and his minions, burdened by the unsettling fact that the world as they know it has changed... forever.