In November 2016, Pete Whittaker became the first person to solo - all free - El Capitan in under 24 hours, finishing in 20 hours and 6 minutes. Rope Solo Free climbing is a sport that few people know about and even fewer people do. We hear from Pete Whittaker, his long time climbing partner Tom Randall and Big wall solo climbing expert Andy Kirkpatrick as they take us through the paces of what it really means to make a rope-solo-free ascent of El Cap.