2/2. Up: Dr Kevin Fong learns how we can survive in hostile conditions. In the second programme he goes goes climbing in the Alps to find out how the body responds to altitude. Also in HD. [AD,S]
1/2. Down: Doctor Kevin Fong learns how we can survive in hostile conditions. He investigates how our bodies react underwater, and how technology lets us survive the ocean depths. Also in HD. [AD,S]