Some time after the trio of villains has been defeated, Nightmare Night is celebrated once again, with all creatures participating in the different activities. In the meantime, Twilight and her friends follow Pinkie as she tells them about a haunted mansion she noticed at Ponyville's outskirts, so they decide to go there and see what it's all about.

For starters, the empty place is in a decaying state, and the panorama is just getting worse as time goes by. As if that wasn't enough, they begin to feel something is watching them...

My Little Pony: Friendship is Magic and its characters belong to Hasbro.