Set in the years before and during World War I, this epic tale tells the story of a rich Argentine family, one of its two descending branches being half of French heritage, the other being half German. Following the death of the family patriarch, the man's two daughters and their families resettle to France and Germany, respectively. In time the Great War breaks out, putting members of the family on opposing sides.

In a prologue, as a woman pages through a book, male figures, including a musketeer, a cowboy, a swordsman and a military officer, appear and bow. In the main story, the visit of Prince Ferdinandi sends New York society ladies scurrying to purchase gowns for the upcoming ball. The woman seen earlier looking longingly at the book, model Marjorie Bowen, fights off the advances of Cadwallader Smith, who accompanies a patron. When handsome Sir Derwain Leeds, the prince's aide-de-camp, arrives to see his fiancée Yvette Fernau outfitted, Marjorie exchanges a shy smile with him.