After leaving behind her sweetheart in Ireland in order to start a new life in America, Maggie Murphy becomes one of the only passengers in steerage to survive the "Titanic," and vows never to speak or think about the terror she felt that night--and also to forget her Ireland. Years later, Grace Butler, her granddaughter, uncovers Maggie's secret and leads both herself and Maggie back to Ireland and to family they had thought to be lost.