Despite attempts by his friends, loved ones and his new girlfriend to dissuade him from this dangerous feat, Alex Honnold, the worlds most accomplished free soloist climber, prepares mentally and physically for his most daring adventure to date: scaling the 3200-foot El Capitan in Yosemite without a rope or safety gear. If he succeeds, it will mark the largest wall he, or anyone else, for that matter, has ascended without any kind of equipment.

Three renowned climbers navigate nature's harshest elements and their own complicated inner demons to ascend Mount Meru, the most technically complicated and dangerous peak in the Himalayas.