When his nephews fail their history class, Mickey decides to try to teach them with pictures. He builds a device to convince them that they are actually viewing the past, but it is switched with a device that can actually do the job.; Mickey and Goofy take a job on a fishing boat, despite the fact that fishermen have been disappearing.; While out on a picnic with Minnie, Mickey demonstrates his system of getting Pluto to fetch the proper item for him.