Narrator (voice)
Kerry Shale
Narrator (voice)

From a long lost US base beneath the Arctic ice cap, to a sunken Soviet submarine, the Cold War's toxic legacy is both fascinating and terrifying.
Narrator (voice)
Kerry Shale
Narrator (voice)
Self - Climatologist
William Colgan
Self - Climatologist
Self - Science Historian
Kristian H. Nielsen
Self - Science Historian
Self
Sören Gregersen
Self
Self - Warrant Officer
Viktor Sliusarenko
Self - Warrant Officer
Self - Senior Scientist
Justin Gwynn
Self - Senior Scientist
Self - Marine Scientist
Hilde Elise Heldal
Self - Marine Scientist
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