Newfoundland, 1919: Two aviators set course for Ireland as they attempt the first nonstop flight across the Atlantic Ocean. Dublin, 1845 and '46: On an international lecture tour in support of his autobiography, Frederick Douglass finds the Irish people sympathetic to the abolitionist cause, despite suffering famine-related hardships. New York 1998: Senator George Mitchell departs for Belfast to shepherd Northern Ireland's notoriously bitter and volatile peace talks to an uncertain conclusion.