As the sport of climbing turns from a niche pursuit to mainstream media event, Marc-André Leclerc climbs alone, shunning the limelight. On remote alpine faces, the free-spirited 23-year-old makes some of the boldest solo ascents in history with no cameras, no rope, and no margin for error. Intrigued by these quiet accomplishments, veteran filmmaker Peter Mortimer (The Dawn Wall) sets out to make a film about Marc-André, who proves to be an elusive subject: nomadic and publicity-shy, he is reluctant to let the film crew in on his pure vision of climbing. As Peter struggles to keep up, Marc-André’s climbs grow bigger and more daring. Elite climbers are amazed by his accomplishments, while others worry that he is risking too much. Then, Marc-André embarks on a historic adventure in Patagonia that will redefine what is possible in solo climbing.