"The whole country is afraid. People favour the armistice and support the Mar chal. Do not assume anyone will not betray you. Above all, remember the French now hate the English..." It is Christmas 1940, Harry Cardwell and his son Frank escorting downed airmen across Vichy France and fascist Spain to safety in Gibraltar. Harry and Frank will be parachuted back into that confusing triptych of danger and death, Switzerland's borders with Germany, France...