The peaceful world of Equestria is hurtled through a massive portal into the grim future of the 41st millennium. Engaged in battle beforehand, both an Imperium and orkish fleet are pulled down to the planets surface. Now not only must the Space marines of the Blood Ravens and their Guardsman allies struggle between their xenophobic ways and the disarming innocence of the planets population, they must also fight the ork invasion now taking place on the world. As the fight for Equestria begins, ancient, sinister powers begin to set their plans into motion...