Doug is thrilled when Mrs. Wingo tells him that he'll be introducing a special performer for an upcoming school show. That is, until he finds out that the performer is actually his sister, Judy. A prankster steals Vice Principal Bone's "Der Grosser Yodelmeister" Trophy, and puts it in Doug's locker. Mr. Bone searches all the school's lockers and is convinced that Doug had stolen the trophy.