Brother Thane, the newest addition to the Blood Angels Chapter, is finally ready to serve his first tour for the Emperor. It is anything but ordinary as he learns the violence of war, makes desperate alliances and discovers the secrets of Equestria. How do the ponies accept a super soldier built for war and nothing else? How do Space Marines handle the harmless, but still alien, ponies of this world? Can either side stand up to the rigors of the grim darkness of the 41st millennium?