When wave after wave of savage ORKS descend upon the Forge World GRAIA, it is up to humanity’s greatest warriors to win the planet back.

They are SPACE MARINES, genetically modified, encased in hallowed armor, the equivalent of one hundred lesser men. They live only to defend the Imperium, and to slay its enemies in a war that never ends.

CAPTAIN TITUS, along with his comrades LEANDROS and SIDONUS, lead a detachment of these Space Marines onto the Forge World. There, they quickly discover that the fight against the Orks is not all that requires their attention. An Imperial Inquisitor named DROGAN needs help securing an experimental POWER SOURCE, before the Orks do so themselves.
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