(VERY loosely based on the Mickey Mouse short "Lonesome Ghosts" though much more on the 'Casper the Friendly Ghost' franchise) The Mane Six and the Cutie Mark Crusaders investigate an alledgely haunted house. In the house they meet a very friendly spirit named Calpepper. Unfortunately, they ALSO meet Calpepper's nowhere-near-as-friendly uncles: Porko, Stringbean and Putrid. Time for the ponies to do a bit of ghost-busting.