Ditzy and the Doctor return to Ponyville after what to them feels like about a day, but to the Doctor's surprise, Ditzy has been labeled a missing pony, and he was her ponynapper. The Doctor meets with an old friend, they, along with Ditzy, use Nightmare Night as a guise to cloak themselves in costumes. They find what they're looking for...but that's not necessarily good. And how will Ditzy's two daughters, Amethyst and Dinky, react to their mother's sudden reappearance after such a long time?