Far away from this world and its petty wars, there is a dimension of pure malicious magic: the realm of chaos. It is a terrible place, and incomprehensible to the mortal mind. He whispers promises of power, but to seize them means to succumb to seduction. Losing his soul to it. Become a part of it.
As rulers of this place, the four powers of corruption are just waiting to strip their shackles and let the world sink into demonic corruption. Nurgle, the Epidemic God; Slaanesh, Prince of Debauchery; Tzeentch, Transducer of the Ways; and Khorne, the Blood God and Lord of War.
Two powerful kingdoms stand guard between the worlds: the tough warriors of Kislev and the Great Empire of Cathay. But both have their own problems - and now an occasion to cross the line and send their armies into the realm of chaos.
The world is at the abyss. The smallest shock plunges them into the cataclysm.
And there is one who wants to achieve just that. Ancient and with unbridled desire for all-encompassing power. To achieve his goal, he needs a champion.
The coming war will stop at nothing. You will conquer your demons. Or command them.