Plot Summary:World War I. Lili Smith (Dame Julie Andrews) is a beloved British music hall singer, often providing inspiration for the British and French troops and general populace singing rallying patriotic songs. She is also half German - her real last name being Schmidt - and is an undercover German spy, using her feminine wiles to gather information from the high ranking and generally older military officers and diplomats she seduces. Masquerading as her Swiss uncle, Colonel Kurt Von Ruger (Jeremy Kemp) is not only her German handler, but her lover. Kurt's boss, General Kessler (Carl Duering), doesn't fully trust Lili as she is still half British. That is why it irks him that Kurt has entrusted Lili with the important mission of finding out more about the Allied air defense plans, the air which is becoming a more important battleground of the war. Of the five men who are most privy to such information, Kurt believes the best target is American pilot Major William Larrabee (Rock Hudson), as he ...