The Doctor, Twilight, Rarity and Pinkie Pie visit their first alien world in the TARDIS; the planet of Qing, and meet its exotic inhabitants, the Quilin. But not everything in this near-perfect utopia is as it seems.
Alone for the holidays, Scootaloo is drawn into a strange adventure with Spike and the Doctor as cheer and goodwill disappear from Ponyville's residents. Can they uncover the cause and fix the problem in time to save Hearth's Warming?
Starlight Glimmer is about to get her revenge on Twilight and her friends, she just has to stop that cyan pegasus from doing her rainbow trick. But before doing so, she receives a visit from a Doctor.
Twilight, Rainbow and Applejack travel 3000 years into the past with their new friend the Doctor, to the ancient city-state of Roan. They meet the famous Leonard DiHoovsie, and find themselves embroiled in a deep mystery with dark implications.
Sunset Shimmer has fled back to Equestria, forced out of place by her double. The local versions of her friends try to make her feel comfortable, but Sunset is upset and scared. Worse still, she's becoming unstable again. She didn't come back alone.
Roseluck's life had been a constant routine. But that changes when she goes to Manehattan and she becomes involved in a conspiracy against all of Equestria. Luckily for her, there is somepony who can help her, somepony who calls himself the Doctor.