Explore the universal drama of war: why leaders and soldiers pick up arms to fight, the technologies that have determined outcomes, the tragedies and triumphs of history’s great battles.

History & Warfare

A US sub shows unbelievable courage in the face of impossible odds. A look into how a bomb dropped by the Japanese forces pushes the craft into a deadly dive, and ignites a toxic chemical fire that leaves the crew fighting for their lives.

Hell Below

Edge of Survival

Retracing the steps of a German U-boat that's willing to do anything to replace its dwindling fuel and food stores, and get back to port; examining how the crew, plagued by scurvy, turns the tables on the US submarines that try to ram their ship.

The Hunted

Learning why a clash over Nazi ideology wrecked a bright U-boat commander's career.

Courageous Captains

Navigating the narrow, deep fjords that lead to Narvik, Norway, where German and British forces faced off in April 1940; repeated torpedo failures threatened to sink the mission and leave Hitler's invading troops exposed and vulnerable.

Life and Death Decision

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Stories of some of the greatest and deadliest submarine patrols of World War II.

S4 E2 | Courageous Captains

E4 | Edge of Survival

E3 | The Hunted

E2 | Courageous Captains

E1 | Life and Death Decision