If you could change your birthrights, would you? What would be different about the mane six if they had been born as something other than what they were?

After ranking third in a tournament, Sparkle Sprint the pegasus is sent to Ponyville to watch over this year's Midwinter Moon Merriment festival. She and her assistant-brother Spike the dragon must make sure that the five heads of affairs have everything pleasing to Princess Celestia.