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.
When Zecora falls ill with a deadly sickness, it falls to the Doctor, Twilight, and Fluttershy to find a cure in her ancestral homeland Zebrica. All the while dodging the twisted machinations of an old foe from the Doctor's past.
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.
After the harrowing events of "Traveller," the Doctor is forced into having some downtime in Ponyville while the TARDIS rests. Meanwhile, Twilight goes to confide in her beloved mentor, but ends up learning far more than she expected.