Mister Rogers demonstrates a machine that blows a stream of air on which a ping pong ball can be balanced. He shows pictures of the puppets in the Neighborhood of Make-Believe. Mr. McFeely forgets to bring the dog to Mister Rogers as he promised. He says he will bring the dog next week. In the Neighborhood of Make-Believe, Queen Sara sends Bob Dog to Henrietta with a note asking her to babysit. He forgets to give her the note when he has a chance to ride in a floating rocking chair. When he remembers, he rushes to Henrietta’s house and finds she just left for the weekend. Lady Aberlin offers to babysit for the prince with Bob Dog.