The Last Unknown (2021)
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Ian Shive as Self
Episodes 4
The Aleutian Islands
March 18, 2021
1x1
Ian Shive leads a risky expedition into a remote Alaskan wildlife refuge.
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Palmyra Atoll
March 18, 2021
1x2
Ian explores one of Earth's most well-protected coral reef ecosystems.
Read MoreRose Atoll
March 18, 2021
1x3
Ian joins a team of scientists to unlock vital new info about coral reefs.
Read MoreThe Channel Islands
Season Finale
March 18, 2021
1x4
Ian explores one of America's least-known national parks.
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