Seasons & Episodes
EP 1
Polars vs. Grizzlies
Nat Geo's veteran bear expert Casey Anderson and seasoned naturalist Jason Matthews plunge into some of the most dangero
EP 2
Crater of Fire
Daredevil scientific explorer George Kourounis and his team of climbing experts and scientists set out to tackle one of
EP 3
Yosemite Death Climb
Join prolific rock climber Alex Honnold on his daring attempt to set a world record by free soloing a trio of harrowing
EP 4
Great White Ambush
A team of shark experts and veteran wildlife filmmaker Andy Casagrande venture off the coast of Gansbaai, South Africa,
EP 5
Crossing the Ice
No one has ever walked without any assistance across Antarctica to the South Pole and back -- until now. We follow two A
EP 6
K2 Death Mountain
Trace the fateful steps that led to the biggest disaster in mountaineering history.
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