For most ponies, Winter Wrap Up Day is a happy affair. This is especially the case in the town of Ponyville where they sing while clearing away winter with their own hooves. Yet for Luna, the princess of the moon, this day is one of the saddest of the year. On the eve of that day, she travels to Ponyville to visit Twilight, a good friend of hers, in order to enjoy the last moments of winter.

Rated Teen for a very brief, non-descriptive section on war