Mr. Rogers plays with some floating toys in a tub of water. Scientist Alder stops by with an anemometer to check wind velocity for Donkey Hodie, who is looking for a place with a good wind to build his windmill.
In the NOM, he finds that the best place to build a windmill would be behind the castle. King Friday says there is no land available.
Mr. Rogers shows different kinds of fans including an electric one. He talks about safety and how children must wait until they are older to play with certain toys.
Songs: Won't You Be My Neighbor?, Parents Were Little Once, Too, Tomorrow.