The 'steel coffin's' was the name given to the U-boats of the Krieg marine by their own crews. Their fatalistic view of the war was certainly justified; it is estimated that seventy five per cent of the 39,000 men who sailed in the U-boat fleet paid the ultimate price as the tide of war turned inexorably against Hitler's Germany. This incisive DVD tells the story of the U-boat war from the perspective of the men who sailed in the U-boat fleet. Drawing on extensive newsreel footage and rare war time photographs, this is the definitive story of the U-boat war from the inside.