A Polish theater group is performing “Hamlet” as German forces prepare something sinister nearby. "Joseph" (Jack Benny) and his wife, "Maria" (Carole Lombard), are the leads, and she attracts quite a bit of attention, including from an air force officer, “Sobieski” (Robert Stack), who heads to England after the invasion to join the RAF. He makes a rather ill-advised decision to share sensitive details about the resis…