Monty Woolley plays an irascible Englishman who insists that he dislikes children. While on a vacation in France, the Nazis invade the country. Reluctantly, Woolley agrees to transport several French children into England. As the flight to freedom becomes more treacherous, Woolley grows fonder of his young charges and vows that they'll be kept safe. The group is detained by German officer Otto Preminger, who finally allows Woolley and the children safe passage--provided they take Preminger's niece to England as well. Pied Piper was based on a novel by British author Nevil Shute.