Discord has put together a dinner for Celestia, as a genuine thanks for giving him another chance at life, and perhaps to move to something more than just friendship. Their dinner is interrupted by Scratch, Warden of Tartarus, and continual thorn in the side of Equestrian Royalty. He comes bearing bad news... Someone or something has escaped.from Tartarus, and what's worse, it has kidnapped Luna.

Celestia and Discord need to ask around to the other Princesses and Zecora to find out how, who, and why this all happened.