It has long been said that should the disparate Orks ever unify beneath one leader they would crush all of the so-called civilised peoples of the galaxy. That doomsday draws nearer, for the great greenskin Warlord Ghazghkull Thraka has arisen, and Orks from all clans muster to his bellowing warcry. He is not just a mighty warrior, but a master strategist and the living Prophet of Gork and Mork – the brutal greenskin gods. Already star systems burn upon his orders, and more will soon follow. Ghazghkull has called the Great Waaagh!, drawing towards him the most warlike of his savage race. Goff warbands, Speed Freeks, Dread Mobz – all have crossed the stars in their seething multitudes to join the greatest Ork crusade in a millennium. This time, nothing will stop the green tide.