When Cyd and Shelby go back to kindergarten to celebrate their friendship anniversary and relive the day they first met, they begin to change back to their five-year-old selves. Barry and Naldo must help them by getting them to drink a lot of milk. However, while it works on Shelby, it does not work on Cyd. It turns out that Cyd was scared of growing up. After a pep talk from Shelby, all ends well.