The Zoops Gumby, who has been selling watermelons to raise money to buy his mother a birthday present, is given a magic potion by a wizard which transforms watermelons into colorful creatures called "Zoops", which move about randomly. Seeing the chance for a fast buck, Gumby sells them to the zoo, then celebrates at an automat. When Pokey says they should only spend the money on the present, Gumby says to lighten up and live a little. Meanwhile at the zoo, when the Zoops are out of control, the zookeeper hoses them with water, causing them to revert to watermelons. Gumby, who already spent half the money celebrating, is made to work it off cleaning cages. Pokey is sorry Gumby's mother will not be getting a present, and when Gumby suggests another moneymaker, Pokey replies "No, Gumby, I have had enough of your ideas".