Following the events Jerry Mitchell encountered in Dangerous Ground, the pilot-turned-submarine officer is now a department head, the navigator, aboard USS Seawolf. Now on a mission deep in the Barents Sea, north of Russia, Seawolf explores the sea floor, part of a sophisticated reconnaissance plan that will watch the Russian navy as it trains for battle. Although well outside Russia's territorial waters, Seawolf is ambushed by Russia's newest submarine,...

Witnessing a torpedo attack on a Vietnamese merchant ship by a Chinese nuclear sub, USS North Dakota captain Jerry Mitchell helps to forge a tenuous new alliance with Western Pacific nations in a covert submarine campaign aimed at crippling China's economy and preventing a full-scale war.

"From New York Times bestselling author Susan Casey, an awe-inspiring portrait of the mysterious world beneath the waves, and the men and women who seek to uncover its secrets For all of human history, the deep ocean has been a source of wonder and terror, an unknown realm that evoked a singular, compelling question: What's down there? Unable to answer this for centuries, people believed the deep was a sinister realm of fiendish creatures and deadly...

In March 1941, after a year of unbroken and devastating U-boat onslaughts, the British War Cabinet decided to try a new strategy in the foundering naval campaign. To do so, they hired an intensely private, bohemian physicist who was also an ardent socialist. Patrick Blackett was a former navy officer and future winner of the Nobel Prize; he is little remembered today, but he and his fellow scientists did as much to win the war against Nazi Germany...

It is 1942 and the German submarine fleet is heavily engaged in the so-called 'Battle of the Atlantic' to harass and destroy English shipping. With better escorts of the destroyer class, however, German U-Boats have begun to take heavy losses. This story of one U-Boat crew details how these submariners maintained their professionalism as soldiers and attempted to accomplish impossible missions, while trying to understand and obey the ideology of the...