Casey Owens (James Darren), a young mechanic, has developed a design for a turbine car engine, paving the way for a jet-powered auto certain to set a new land speed record. Wealthy playboy Stanford Rogers (Peter Mann) hires Casey to build a car for him to attempt to set a new Land Speed Record. Chuck Manning (Doug McClure), an engineering student Casey met in a drag race, discovers potential flaws in the car's design. After an unsuccessful test run, Rogers abandons the turbine-powered. He decides to turn his attention to race a car in the Tristate Endurance Race. Casey and Chuck buy the wrecked Land Speed car and salvage the Turbine Engine. They fix the Turbine and install it in a car that they enter in the Tristate Endurance Race. Pamela Tiffin plays Eadie, Chuck's sister, who becomes Casey's love interest.