Alex Honnold embarks on an epic quest of unclimbed walls in one of the most remote corners of Greenland, a country on the frontline of the climate crisis in the new three-part series ARCTIC ASCENT WITH ALEX HONNOLD. Joining Alex on his quest are world-class climbers Hazel Findlay and Mikey Schaefer, Dr. Heïdi Sevestre, Greenlandic guide Adam Kjeldsen, and renowned adventurer Aldo Kane. All episodes premieres Feb.4 on National Geographic starting at 8/7c, streams next day on Disney+ and Hulu.