The Elements of Harmony were annihilated in the final confrontation against Discord. Without them, there was only a matter of time until things fell apart. In a world without Harmony, the Solar Dominion is locked in an endless confrontation against the Lunar Sovereignty. Neither faction has a distinct advantage. The entire race of ponies is quite literally tearing itself apart.

Enter Twilight Sparkle, a uniquely gifted battlemage under the tutelage of Princess Celestia. Sent on a clandestine mission into Lunar lands, she must keep her identity secret at all costs as she recovers a mysterious relic that will tip the balance of the war. She isn't the only one with their own agenda in these treacherous lands, however, and with nopony to watch her back, she's going to have to do it herself.