Vatican efforts, led by Monsignor Hugh O'Flaherty, to save Allied P.O.W.s and downed Allied airmen as the Nazis invade Rome.Vatican efforts, led by Monsignor Hugh O'Flaherty, to save Allied P.O.W.s and downed Allied airmen as the Nazis invade Rome.Vatican efforts, led by Monsignor Hugh O'Flaherty, to save Allied P.O.W.s and downed Allied airmen as the Nazis invade Rome.