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Judy and her grandpa run a trolley between a train depot and a ghost town in Nevada, near the California border. Three spies intent of tracking down an atomic missile gone astray arrive. When the trolley breaks down, Judy and Grandpa unwittingly install the engine from the nearby crashed missile.
as Judy Canova
as Don Mack
as Stefan
as Hogar
as Grandpa Rutherford Canova
as Otto
as Professor
as Technician