Bear Grylls is a seasoned adventurer who served with the Special Air Service, a special forces unit of the British army, where he was trained as a survival expert. His experiences include climbing Mount Everest, crossing the freezing North Atlantic Ocean in a small, open boat and climbing a Himalayan peak described by Sir Edmund Hillary as 'unclimbable'. He has been places and done things that would defeat most normal people. But now, he is up against something completely different.