The modern girl in the grimdark future of Warhammer 40k.

Olga, a young Russian girl with a hard past. Fidus Kryptman, an Inquisitor plagued by the weight of his father's shadow. Pulled together through time and space into Ballistic Station XVI, an installation overrun by deadly and mysterious interlopers. Can Olga save the wounded Kryp - and can they survive the horrors of 40k, where the consequence of bravery and survival is often an even worse fate?