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.

Hell Below

S4, EP1 "Life and Death Decision"

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.

Hell Below

S4, EP2 "Courageous Captains"

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

Hell Below

S4, EP3 "The Hunted"

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.

Hell Below

S4, EP4 "Edge of Survival"

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.

History's Greatest Warbirds

S2, EP1 "B-17 Flying Fortress"

Learn how renowned fighter jets, bombers, and helicopters changed history.

History's Greatest Warbirds

S2, EP2 "B-24 Liberator"

Seeing how this heavy bomber proved naysayers wrong over Europe and the Pacific.

History's Greatest Warbirds

S2, EP3 "B-25 Mitchell"

Scoping out a forgotten bomber; its most daring raid and its cool afterlife.

History's Greatest Warbirds

S2, EP4 "A-1 Skyraider"

Cruising in the attack aircraft that was the US infantry's best friend in Vietnam.

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