Dean Potter finds joy and escape through his early success at extreme climbing, where he connects with a community of like-minded people seeking the sport's freedom and adrenaline. A renegade by nature, Dean's restless energy compels him to pioneer new ascents and forge new world records, even while at times falling afoul of the establishment and struggling with personal relationships.

The rivalry between Dean and Alex Honnold intensifies as both climbers vie to be the first to free solo a route on the 3000 foot El Capitan. As Dean's mental state deteriorates, he alienates his inner-circle and accepts a dangerous career opportunity in China.