A young tomboy learns about love in this undistinguished story that focuses on the coyly named Tommy Boyd (Betsy Russell) who has a penchant for riding motorcycles, expertly tinkering with the mysterious inner workings of car engines and moving parts, and playing basketball. Her interest in men is nonexistent until she meets a handsome racecar driver (model Jerry Dinome) who manages to divert her attention a few degrees away from the underside of a car. After establishing their relationship, the couple have a serious argument that does not seem easy to settle. And so the two end up in a Daytona 500 race in which he drives his usual souped-up version of automotive splendor, and she counterattacks with a super-improved, four-wheeled wonder she put together before the race.