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Watch The Lively Set online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

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 the car for him to race in the Tri-State Endurance Run. 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 car for a traditional racing model, but Casey and Chuck rework the turbine vehicle to compete with Rogers in the endurance run. Pamela Tiffin plays Eadie, Chuck's sister who becomes Casey's love interest.