Because it is there is the reason so many men and women have risked death to climb Mount Everest, the tallest mountain on earth. NOVA follows a scientific investigation of high-altitude physiology in Everest: The Death Zone, which examines the biological and psychological changes experienced by a group of climbers during their ascent. Jodie Foster's narration accompanies the team as the NOVA photographers capture the stark, alien beauty of the mountain; the drama reaches a crescendo on the descent as it becomes unclear whether or not an ill climber will make it. <br /> <br />Well worth watching by anyone interested in mountain climbing or the limits of human endurance, Everest: The Death Zone is at once cautionary and inspiring. Get ready for a (literally) breathtaking trek up Mt. Everest, from Base Camp at 17,600 feet; through the chilling, corpse-strewn Death Zone; to the very pinnacle of the the Earth, five and a half miles above sea level. For those brave souls who survive the harrowing climb to the top of the world, it is a transformative experience.