By Peter Mortimer and Nick Rosen / senderfilms.com — Enter the danger zone with legendary climbers Tommy Caldwell, Steph Davis, Matt Segal, Lisa Rands, Ammon McNeely, Alex Honnold, Chris McNamara, Dean Potter, Renan Ozturk, Jonny Copp and many others. THE SHARP END is an adrenaline-soaked journey up the world’s most challenging walls: The French Alps, the Eiger, the Utah desert, the Diamond of Colorado, Indian Kashmir, Yosemite granite, and the sandstone spires of the Czech Republic. Run-out routes, scary high-ball boulder problems, ice-covered alpine walls and all-or-nothing free-solo ascents will keep your palms perspiring.