The film chronicles a century of giving that created national parks from southern Florida to the frozen tundra of Alaska, from the rocky coast of Maine to the flight of the Tuskegee Airman.  Premiering September 27th on PBS, the 12-hour, six-part documentary series traces the birth of the national park idea in the mid-1800s and follows its evolution for nearly 150 years. Told through the stories of the people who helped create them and save them from destruction, it is both a biography of compelling characters and of the American landscape.