Episode 1
Aired Feb 2, 2022
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
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Episode 2
Aired Feb 9, 2022
Secrets in the Scat
From wombats to whales, biologist Scott Burnett analyzes animal feces to learn more about animal behavior, adaptation and survival.
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Episode 3
Aired Feb 16, 2022
Great Mammoth Mystery
A unique site in southern England preserved rare traces of ancient ice age mammoths and Neanderthals; host David Attenborough.
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Episode 4
Aired Feb 23, 2022
Augmented
An inventor of bionic limbs works with an injured climber and a surgeon to test a new amputation technique that allows prosthetic limbs to move and feel like the real thing.
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Episode 5
Aired Apr 6, 2022
Determined: Fighting Alzheimer's
Three women enroll in trials at the University of Wisconsin in hopes of finding a cure for Alzheimer's disease.
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Episode 6
Aired May 11, 2022
Dinosaur Apocalypse: The New Evidence
Scientists uncover clues at a fossil dig site in North Dakota that reveal details about the day an asteroid struck Earth and wiped out the dinosaurs.
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Episode 7
Aired May 11, 2022
Dinosaur Apocalypse: The Last Day
Exploring fossils from a North Dakota site that may reveal what happened when an asteroid struck Earth and wiped out the dinosaurs.
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Episode 8
Aired May 18, 2022
Why Ships Crash
The investigation into how the Ever Given container ship crashed into the Suez Canal in March 2021, causing a major supply chain crisis around the globe.
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Episode 9
Aired May 25, 2022
Ice Age Footprints
A look at what thousands of prehistoric footprints in New Mexico's White Sands National Park might reveal about the peopling of the Americas.
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Episode 10
Aired Jul 13, 2022
Ultimate Space Telescope
NASA's James Webb Space Telescope, from its conception to completion.
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Episode 11
Aired Sep 28, 2022
Saving Venice
Innovative engineering projects, including a new hi-tech flood barrier, may save Venice, Italy, from the rising seas that threaten its survival.
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Episode 12
Aired Oct 5, 2022
Ending HIV in America
Clinical trials test a wide variety of different approaches to end the AIDS epidemic in America, from long-acting preventive drugs to antibody therapies to vaccines.
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Episode 13
Aired Oct 12, 2022
Computers v. Crime
The hidden biases, privacy risks and design flaws of the artificial intelligence programs relied on by police departments and the courts.
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Episode 14
Aired Oct 19, 2022
Can Psychedelics Cure?
Scientists discover that psychedelics can have positive clinical impacts, helping patients with afflictions ranging from addiction to depression to PTSD.
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Episode 15
Aired Oct 26, 2022
Ocean Invaders
Marine biologist Danni Washington studies how lionfish have invaded the Atlantic and wreaked havoc, and what can be done about it.
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Episode 16
Aired Nov 2, 2022
Nazca Desert Mystery
Discoveries of long-hidden lines and figures etched into the Peruvian desert offer new clues to the origins and purpose behind the Nazca Lines.
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Episode 17
Aired Nov 9, 2022
Crypto Decoded
Unraveling the social and technological underpinnings of cryptocurrency, from bitcoin to NFTs.
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Episode 18
Aired Nov 16, 2022
Zero to Infinity
How key mathematical concepts such as zero and infinity were invented and reinvented by different cultures across thousands of years.
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Episode 19
Aired Dec 14, 2022
Rebuilding Notre Dame
A team of engineers, masons and timber workers restore France's Notre Dame Cathedral following the April 2019 fire.
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