In the hostile universe of the forty-first millennium, where loyalty is a fickle concept, few of the Emperor's sons are as mysterious and unpredictable as the members of the Alpha Legion. Although they were branded traitors during the heresy, the motives and actions of these warriors have always been shrouded in mystery. An Alpha Legionnaire named Occam the Unfaithful leads his gang out of their usual hunting grounds in the Maelstrom zone, embarking on a quest to save not only himself, but the entire legion. Pursued by the forces of the Inquisition, Ockham and his followers use all their cunning and impressive military skills to make their way to the cold heart of the Galaxy, where they face a confrontation that no one, least of all Occam himself, could have foreseen.