Opie's new friend Arnold is a spoiled brat used to getting his own way. He convinces Opie to try and get a raise in his allowance by throwing a temper tantrum, showing Andy that he must teach Arnold's father the importance of discipline before Opie picks up any more of Arnold's spoiled habits.

Barney is sent into a reputed "haunted" house to retrieve Opie's baseball and sees things that make even the skeptical Andy wonder if there really are ghosts, until Andy discovers who's really doing the haunting.