This is the story of an average day in Equestria, and Pinkie Pie is going to celebrate it by sending out invitations to anypony and everypony! Join Derpy as she delivers letters to Trixie, Pipsqueak, The CMC, Big Mac, Twitchy, Lyra and Bon Bon, Vinyl and Octavia, Sonata, Braeburn, Cheerliee, Mayor Mare, The WonderBolts, Diamond Tiara and Silver Spoon, The Cakes, Celestia and Luna, Berry Punch, Prince Blue Blood, Shining Armor and Cadence, Chrysalis and Changeling #42, Zecora, Aloe and Lotus and of course The Mane 6 and also get a look into each character's day as they prepare for Pinkie's party (or not as the case may be for some)