Today's the big day, as the curious little convertible prepares for the Cartown 500. Redline Rick is eager to start the race but Putt Putt and Pep need a few items before they are ready to roll. Kids join in the adventure as they explore new Cartown locations, such as Torvil Tractor's farm and Rover's Rocket Drive-in, looking for a safety helmet for Pep. Old friends, like Smokey the Fire Engine and Outback Al, help Putt Putt get to the track in time for the big race. As the grand finale, for the first time, kids can hop behind the wheel and race their favorite purple car toward the checkered flag at the Cartown Speedway!