Sunset has been in the human world for so long she's almost forgotten the taste of her favorite food, but an encounter with a few of Applejack's hay bales incites an uncontrollable urge within her to indulge in her old pony pastime.
Celestia prepares for another routine day at the castle with the recent addition of teaching her new, young student. However, an impromptu structure made from books causes a slight change of plans.