Yet more American climbing mayhem. Speed big wall soloing by Dean Potter, Dan Osman's world record rope jump, slack lining. Dean Potter is a human acetylene torch, burning down the walls of the, "impossible." Potter's raw power, emotional intensity and deadly commitment reveal a terrifying world at the outer edge of human ability. Steph Davis is beautiful, brilliant and bold...free-soloing 5.12 and 5.11+ on red desert sandstone. Dan Osman's fatal... see more