Kilian Jornet earned the reputation as the ‘fastest sky runner’ after winning an international sky running competition at the age of 19. Holding the fastest known time for the ascent and descent of Mont Blanc, Matterhorn and Aconcagua, his last goal is climbing the world’s highest peak of Mt. Everest. During its 90 min running time, the film discloses the tensionpacked rollercoaster ride between physical danger and passion, which Jornet struggles to share with his girlfriend who is also a sky runner. Interviews with colleagues and ‘living legend’ Reinhold Messner, who relates the inner world of extreme mountain climbers, are overlapped with Jornet’s endeavors to reach the top of Everest alone and without any oxygen support. (OH Young-hoon)