A dog show is coming up, and cool prizes are given to the winning dog and its trainer. Cheese, Girl and Mouse all have great ideas for how to train Dog for the grand finale. And if Dog picks one of their finales, that sibling gets to be the trainer who shares in the prize! Boy also wants to help but gets shunned for having a less impressive idea on how to win. The contest arrives, but Dog is torn when it comes to his finale. Whose idea does he choose? Can Boy jump in with his 'unimpressive' idea and help save the day?

When Boy, Girl and Cheese learn that their animal siblings have a tough time going through life with their unwieldy tails, they want to understand what it's like. So Mouse builds them mechanical tails to wear, and the three soon learn just how hard it is to do simple tasks. However, they come to master their tails well enough to attend the Curling Tail festival, where all tailed animals celebrate themselves. But when the kids turn their tails to full power to fit in better, they go haywire! They're now in danger of ruining the festival and being discovered as frauds!