Wilhelm Canaris, head of Abwehr, is ordered to make a feasibility study of the seemingly impossible task of capturing the British Prime Minister Winston Churchill and bringing him to Germany. Canaris considers that although Adolf Hitler will soon forget the matter, Heinrich Himmler will not. Fearing that Himmler may try to discredit him, Canaris therefore orders one of his officers, Oberst Radl, to undertake the study.