Mister Rogers arrives wearing a purple backpack which contains a picture of elephants. He invites viewers to join him as he goes to visit these elephants and learns about their eating habits and watches them as they are cleaned. Returning to the house, Mister Rogers reveals that he also has a video tape in his backpack -- a film about how people make backpacks. In the Neighborhood of Make-Believe, H.J. Elephant makes an appearance to which King Friday states in his kingly way: "Oh, my. I do enjoy an occasional bit of banter with a pacaderm. Don't you?" When Mayor Maggie stops by the castle wearing a backpack, King Friday wants to know what is inside. When she does not reveal its contents, King Friday petitions Cornflake S. Pecially to build a machine that can look inside of things. During this time of make-believe, Handyman Negri sings Let's Think of Something To Do as well as I'm a Man Who Manufactures. Part of the "Mister Rogers' Neighborhood" series.