More than a thousand years after the Age of Sigmar, the Empire he struggled to create rests on the edge of destruction - the reign of the greedy and incompetent Emperor Boris Goldgather has shaken down the great and prosperous edifice of his erstwhile realm. Without warning, a terrible and deadly plague strikes, wiping out entire villages and leaving towns eerily silent through the long frozen months. As the survivors struggle to maintain order and a worthy military presence, vermin pour up from the sewers and caverns beneath the cities, heralding a new and unspeakable threat - the insidious skaven!

A thousand years after the Age of Sigmar, the Empire is struck by a deadly plague which decimates the population. In its wake, the foul skaven move to lay claim to the land of men.