[VIDEO] Tommy Caldwell: The Dawn Wall

Tommy Caldwell's dad introduced him to rock climbing at the age of three - and by 16, Tommy was a world champion. For the last five years, Tommy has been attempting to climb a shear 3000-foot rock face that many consider the most difficult free climb ever attempted. How do you stay motivated on such a climb? See how Tommy brings the encouragement of his friends, family and fans along for the ride.