When a spook named Mr. Mean tries to scare Applejack, she drives him off, only for him to confront her friends in their rooms. As they all fall prey to Mr. Mean, unable to drive him off the same way Applejack did, they begin searching for a way to stop him. When they get captured one after another, Twilight finally goes to visit Applejack, only to learn that this goes much deeper than just a single night.