Along with the name Winch, Largo Winczlav inherited a colossal fortune. But where did it come from? Who built his vast empire? What sacrifices proved necessary? 1910, Oklahoma. Thomas Winczlav, Milan's son, sees his life turned upside down when he learns he is the heir to the O'Casey distilleries - a colossal fortune he'll have to share with his twin sister Lisa, who lives in France. As the First World War begins, a sometimes naïve, often flighty Tom will do his best to run his new business; meanwhile, the aviation-obsessed Lisa will carve herself a place in the skies of Europe, dominated by a certain Red Baron.