
Mickey Mouse may have been on a steamboat in one of his first animated shorts back in the 1920s, but his mode of transportation has been upgraded to a roadster in this series. Mickey and his friends participate in high-speed races in their hometown, Hot Dog Hills, and around the world in vehicles that can transform. The familiar names joining Mickey on the track are Minnie Mouse, Goofy, Donald Duck, Daisy Duck and Pluto. Off the track, Minnie and Daisy are busy running a business with which they solve problems for people in need. A number of celebrities -- including real-life race car drivers Jimmie Johnson, Danica Patrick and Jeff Gordon -- lend their voices to the series in guest-starring roles.

Goofy teaches Donald mindfulness before the Roadster Games; Clarabelle assists the Happy Helpers in running a bed-and-breakfast.

Heist's cat gets in the way when the commander attempts to steal Von Drake's Smarty Hat; the Happy Helpers groom pets for The Hot Doggity Dog Show.

Billy Beagle films the garage crew as they try to turn a junker into a winning roadster in one day; the Happy Helpers help a TV chef rescue the Hot Dog Diner.

The pit crews compete against each other to determine the fastest and most efficient team; the Happy Helpers look after Clara Cluck's farm while she goes out of town.