This episode is available ON-DEMAND to customers of participating TV providers.
To unlock access to full episodes select a provider.
Are you sure you want to Sign Out of your provider account?
You are signed in with your account and can watch any available full episodes.
The teams face their toughest challenge yet, a race across an icy glacier, down a whitewater river and across the open ocean to the Mount Augustine volcano. ULTIMATE SURVIVAL ALASKA airs Sundays on National Geographic Channel.
Full EpisodesView all
Video ClipsView All