2018 • 5 Episodes
April 27, 2018
Titans clash along California's big coast where rugged highlands meet the deep ocean.
May 4, 2018
The Land of Giants, where the tallest trees in the world tower over the Californian coast.
May 11, 2018
The High Cascades conceal the most active volcanoes in the Lower 48 that could erupt any time.
May 18, 2018
The perilous peaks of western Montana hide an ancient secret, America's glacier lands.
May 25, 2018
The amazing life around the Rockies, from low valley meadows to the peaks of its mountains.