Summary: Marc-André Leclerc climbs alone, far from the limelight. The free-spirited 23-year-old makes some of the boldest solo ascents in history. With no cameras and no margin for error, Leclerc's approach is the essence of solo adventure.

Summary: Alex Honnold faces the biggest challenge of his career, climbing El Capitan in Yosemite National Park. He pursues it Free Solo, which means climbing without a rope and alone.

Summary: Daredevil mountain climbers on their attempt to break yet another speed climbing record.