Percy builds a machine and the babies, being babies, activate it without even knowing what it does, causing Olie to switch brains with Spot and the babies to switch brains with the parents. Now Zowie must find a way to get everyone to switch back, and fast; It's Kooky Kite Day and the Polie kids are rearin' to get started on Kite making, even Coochie and Coo seem like eager beavers; Uncle Giz is over to babysit Olie, Zowie, Coochie and Coo. Olie and Zowie know what a great babysitter Uncle Giz.