After their mother's death, Nancy and her sister are sent to Europe to socialise with the English high society. Here she attracts a bevy of suitors including Lord Revelstoke and Waldorf Astor, shy heir to a great fortune.

Nancy discovers Christian Science and throws herself into war work. Waldorf's father - Viscount Astor - dies, leaving the title to Waldorf. Unable to seek re-election to the House of Commons, he decides Nancy should campaign in his place.