Flitter thinks Fluttershy is the weakest pony in the world. Flitter has never confronted what Fluttershy's job really means. Nopony ever wants to or should. Now Flitter has to. And 'weak' will turn out to be exactly the wrong word.
A lonely tree, a windswept hill, and a glowing night's sky. All her life, Fluttershy has had this one reoccurring dream, and now it's up to Princess Luna to help her find out why.