In the lands far east of Equestria, across the Veiled Sea, there is only war. The Empirical Order of Griffins and their Aerovice elite strive to push back their many foes and unite the land under their dominion.
Months after the events in the Crystal Empire, Twilight and her friends are tasked with the defense of Equestria, a pursuit that will take them to the ends of the country and beyond.