Exploding a Battleship 3-feet Out of the Water

Hitler's most prized warship sits in Norwegian waters in September 1943, surrounded by torpedo nets, patrol boats, and mountain-high cliffs. At 42,900 tons of steel armed with eight 15-inch guns, Tirpitz has turned back entire bomber squadrons and threatens every Allied convoy crossing the Arctic. Of six submarines that set out, only Lieutenant Donald Cameron's X-6 and another remain racing toward defenses that have never been breached. His periscope has failed, his navigation equipment is gone, too. German hydrophones sweep the waters, listening for the slightest enemy movement. The Lieutenant’s vessel is small enough to fit inside Tirpitz's gun turrets. He carries no torpedoes or guns to speak of. But strapped to his hull are two massive explosive charges, and Cameron can only hope it's enough to sink the largest warship of the Kriegsmarine.