The Secret Millionaires Club goes to Scotland where Radley plans goes to MacAlistair Castle (the location of MacAlistair Bed and Breakfast owned by the Graham Family) to prove that ghosts don't exist when it is said to be haunted by the Ghost of Old Lady MacAllistair and her dog Seamus which have been scaring away customers. The Secret Millionaires Club must find a way to dispel the rumors and attract new customers. Meanwhile, Elena plans to tutor Jones in math in order to get him a good grade.