L'Appel Des Cimes, directed by Alain Pol, is a documentary commissioned by the CAF and the various French ministries on the practice of post-war mountaineering. In 1946, climbers trained at the Fontainebleau Climbing School. Guy Poulet and Jacques Poincenot try to climb the Aiguilles de Chamonix but fail during the climbing phase. After a night in a refuge with Denise Rouzeau and the guide Pierre Allain, the mountaineers make a new attempt. Successful demonstration for those who continued the approach walk then the passage of the seracs of the glacier. On the rock, the roped party crosses a chimney and a crack to reach the summit and abseil down. Led by high mountain scouts, Guy and Jacques rediscover the glaciers and needles of the Mont-Blanc massif during the next lesson.