In January 2015, American rock climbers Tommy Caldwell and Kevin Jorgeson captivated the world with their effort to climb the Dawn Wall, a seemingly impossible 3,000-foot rock face in Yosemite National Park, California. For Caldwell, this was much more than just a climb. It was the culmination of a lifetime defined by overcoming obstacles, including time held hostage in Kyrgyzstan, the loss of an index finger, and the collapse of his marriage. Caldwell and Jorgeson spend six years meticulously plotting and practicing their route. On the final attempt, with the world watching, Caldwell is faced with a moment of truth. Should he abandon his partner to fulfill his ultimate dream, or risk his own success for the sake of their friendship?