Everyone in Bayport is talking about the first annual skateboard contest. The winner gets free mac and cheese balls from The Easy Cheesy food truck for the whole year! Frank and Joe just wish there was someone to beat the school's biggest bully, and best skateboarder, Diesel Diffendorfer. Then their best friend Chet shows them a video of Skeeter the skateboarding cat, a cat that happens to belong to the new kid in town, Carlos Martinez. Suddenly, a plan is hatched.