Horatio Nelson Jackson, an eccentric Vermont doctor, drove from San Francisco to New York City, in 1903 to became the first person to drive an automobile across the continent - a feat never before accomplished. It would mark the beginning of a new era in America and the end of another. It took Lewis & Clark over two years to go from the Atlantic to the Pacific - Horatio went the opposite direction, by means of the "Horseless carriage", in less than 3 months.

Originally broadcast in 2003. Special features: the making of Horatio's drive, outtakes from the film. "PBS DVD gold." Special features: interview with Ken Burns and Dayton Duncan; the making-of 'Horatio's drive'.