It is Hearth's Warming Eve, and everypony in Equestria shares the joy and cheer of the wonderful holiday...

Everypony, that is, except one.

The legacy of Nightmare Moon continues to haunt Luna - ponies are still afraid of her, still distrust her, leaving her alone on a night like no other.

Who will take it upon themselves to help Luna find the happiness shared by all others?

Will the shadow of Nightmare Moon prove too much to overcome?