Episode 1
Aired Jan 6, 2016
Secret Tunnel Warfare
World War I Allies plant 600 tons of explosives in secret tunnels under the German trenches.
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Episode 2
Aired Jan 13, 2016
Life's Rocky Start
Rocks were essential to advancing life on Earth billions of years ago.
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Episode 3
Aired Jan 20, 2016
Mystery Beneath the Ice
Scientists explore Antarctica's under-ice landscape in search of the mystery killer destroying the polar food web.
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Episode 4
Aired Jan 27, 2016
Himalayan Megaquake
The science and anatomy of the April 2015 earthquake in Nepal, as well as stories from survivors who were on Mount Everest and from residents who live near the epicenter.
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Episode 5
Aired Feb 3, 2016
Creatures of Light
Deep-sea scientists study the undersea world of creatures that flash, sparkle, shimmer or glow.
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Episode 6
Aired Feb 10, 2016
Memory Hackers
Researchers study how memories can be implanted, changed and erased.
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Episode 7
Aired Feb 17, 2016
Iceman Reborn
New discoveries about Otzi the iceman, the oldest human mummy on Earth, reveal details about the dawn of civilization in Europe.
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Episode 8
Aired Feb 24, 2016
Rise of the Robots
Advanced humanoid robots adapt to human needs, battle real-world challenges and become part of everyday life.
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Episode 9
Aired Apr 6, 2016
Vikings Unearthed
Dr. Sarah Parcak uncovers new details about the expeditions and settlements of the Vikings.
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Episode 10
Aired Apr 13, 2016
Can Alzheimer's Be Stopped?
Studies of the brain have produced new insights that could lead to a better understanding of dementia and other memory-impairment disorders.
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Episode 11
Aired Apr 20, 2016
Wild Ways
Newly established wildlife corridors offer hope to endangered species around the world.
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Episode 12
Aired May 4, 2016
Operation Lighthouse Rescue
Engineers work to save historic Gay Head Lighthouse on Martha's Vineyard, which is falling victim to the ocean's erosion of the island's cliffs.
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Episode 13
Aired May 11, 2016
Bombing Hitler's Supergun
Historians and engineers investigate how Allied forces conspired to destroy Hitler's "supergun."
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Episode 14
Aired Sep 7, 2016
15 Years of Terror
The psychology of a terrorist and the tools used by governments to thwart their efforts.
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Episode 15
Aired Sep 14, 2016
School of the Future
Reimagining the future of education to help prepare children to compete in an age of rapid innovation and globalization.
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Episode 16
Aired Oct 5, 2016
Great Human Odyssey
Discoveries about human origins and how humans have survived climate change and geological catastrophe.
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Episode 17
Aired Oct 12, 2016
Super Tunnel
Engineers and designers build Crossrail, a new subterranean railway beneath the streets of London.
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Episode 18
Aired Nov 2, 2016
Treasures of the Earth: Gems
Precious gems, metals and energy resources are forged under the earth.
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Episode 19
Aired Nov 9, 2016
Treasures of the Earth: Metals
The unique properties of metals and how they've helped lead human civilization from the Stone Age to a hi-tech world.
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Episode 20
Aired Nov 16, 2016
Treasures of the Earth: Power
Earth's natural resources provide energy to power the modern world.
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