Set a few years after Magic is Friendship has ended, Pinkie Pie is living her life in Ponyville much as she always has. She helps take care of the Cake twins, she plans parties, and she spreads joy to everypony she comes across. When Cheese Sandwich returns to Ponyville to ask her a very special question, it throws her whole world for a whirl, and these star-crossed ponies will have to figure out how they can be together even when they have to stay apart.