Jessy and Nessy are playing Follow the Leader when they realize Nessy's tooth is loose. They want to find out how and when it's gonna fall out. Then, when it does fall out, they discover that Nessy gets a spin of the Wheel of Big Kidness! The Rolling Rollercoaster is in town, but only for one day. Jessy would love to ride it, but she's too small -how can she grow quickly enough to take a turn?