Years ago, Hondo Flanks and Cookie Crumbs sent their daughter, Rarity, to Ponyville for a better education than their little town of Swamp Hollow could give her. A few years after that, they sent their youngest, Sweetie Belle to live with her sister for the same reason. Now, with a new school and teacher, Sweetie Belle's parents have come to take her home with them. Will Sweetie Belle have to leave Ponyville, Rarity and all her friend, or can Rarity and her friends convince Hondo and Cookie that Sweetie Belle is better off staying in Ponyville?

Since he was a hatchling, Spike has always ridden on Twilight’s back. Now he wants to return the favor, but he is too small. He finds the answer in an old spell that can age him one hundred and fifty years. But when he tries to cast it on himself, he inadvertently finds himself in a future where ponies are at war with the dragons.