In 1944, an American bomber squadron is tense and discontented from too many missions over France. Luck runs out for Capt. Stevens and his crew; they must bail out and are promptly taken prisoner. Their wily German captors, sensing that they have valuable information unknown even to themselves, use every form of velvet-glove trickery to worm it out of them. Will Stevens discover the danger? If so, what can he do about it? The fate of 100 planes depends on the answer...