In the 41st millennium of the Galactic Human Imperium, humanity has forgotten the power of science and technology, lost to the ravages of time. Progress and understanding are mere whispers in this cruel and dark future, where war reigns supreme. The stars know only endless slaughter and carnage, punctuated by the raucous laughter of hungry gods. Soshjan Alexey, a battle-brother of the Star Knights Chapter and sole survivor of the World Engine campaign, carries the weight of rebuilding his chapter and a galaxy-shaking secret into the unknown.