Fluttershy had had many dreams about flying to the Sweet Apple Acres orchard by night, conversing with the bats and enjoying apples. But when one of her dreams takes a different turn, she and Big MacIntosh find their waking worlds turned upside-down.
While in Trotsylvania, a mare by the name of "Fluttershy" meets a gentlecolt named "Dr. Van Helstallion" and must be protected from a vampiric demon who is, not only, persuing her, but killing other young mares in the village.
Sisters, Cadence and Fluttershy, are told the legend of the "Sleeping Princess" by their father, Soarin', only to find that it is indeed true and it's up to the two of them to break a curse and also find the lost Prince of the Everfree Forest.