The feral warrior-kings of Fenris, the Space Wolves are the sons of Leman Russ. Savage heroes, few can match their ferocity in battle. As events on the plague-wracked world of Ras Shakeh spin out of control, the Imperium descends upon the world in force. Njal Stormcaller, Space Wolves Rune Priest, arrives to reinforce the embattled Jarnhamar pack, and finds his battle-brothers at one another's throats, each pursuing their own agendas. Meanwhile, the forces of the Ecclesiarchy arrive to retake their world and uncover the sinister secret behind Ras Shakeh's corruption, a secret that threatens the survival of the Imperium itself.

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It's Njal Stormcaller! One of the galaxy's mightiest psykers lets loose on the servants of Nurgle. If that's not enough, there's intrigue and danger from within as Nurgle's corruption worms its way into the Space Wolves and their allies and no one can be trusted (except Njal, of course).