The story of the Three Musketeers, D'Artagnan, and the imprisonment in an iron mask of the identical twin of the King of France, Louis XIV.

Lucien Berardini and Edmond Denis are two mountaineers who took part in the French expedition to Aconcagua (Andes Mountains) in 1954. Both suffered severe frostbite to their fingers and toes, and three years later, they set out to climb the Aiguille du Géant, a legendary route in the Mont Blanc massif. The camera closely follows the efforts of the roped party, an example of strength and self-sacrifice, until their victorious arrival at the summit.

Traumatized by the War of Algeria and by the accidental death of his wife and his son, Manu left the right road. His last caper was the attack of the Antwerp-Tangiers Express, carrying a precious cargo of industrial diamonds. But the whole affair was bungled and all of his accomplices got shot. The only survivor of this disaster, Manu now finds refuge in the mountain house of Lucia, the widow of a smuggler who lives alone there with her little boy.

The story of the ascent of the Aiguille de la République by mountaineers Jacques Fromentin and Michel Bastien. The Aiguille de la République, in the Mont-Blanc massif, culminates at an altitude of 3,305 meters among the Aiguilles de Chamonix group of summits. In the Fontainebleau forest, children learn mountaineering techniques on the bouldering climbing site. In 1954, rock climbing was also practiced in the Chamonix valley. The Montenvers train crosses the viaduct taking tourists or athletes to the Mer de Glace viewpoint. The two climbers take an approach step and reach the Envers des Aiguilles refuge. They then climb this steep and smooth wall, progressing along the ridge. On the platform, a rope throw allows them to climb up and sit at the top to dominate the panorama. Then the return: abseiling from the summit block.

René Collet, skier member of the French team, guides a friend from the summit of the Aiguille du Midi. This descent is an opportunity to focus on the remarkable elements of the terrain: the cable car and its work still in progress, the surrounding peaks (Capucin, Mont Maudit, Mont Blanc). The two skiers stop regularly, here to observe climbers scaling the south face of the Aiguille, there to visit the Cosmiques Laboratory. They even take the time to rescue a skier stuck in a crevasse at the Séracs du Géant, before continuing their descent in style onto the Mer de Glace.

Mountaineers Roberto Sorgato and Ignazio Piussi relive their 1961 adventure: the first winter ascent of the north face of Cima Ovest di Lavaredo, a formidable Dolomite wall reaching 2,973 meters. During this expedition, Sorgato accidentally fell 60 meters while the climbers were preparing their third bivouac and found himself suspended in mid-air by a rope. Through sheer perseverance, ingenuity, and courage, he managed to pull himself back to his partner. The film, shot eleven years later, is a reenactment with the protagonists playing themselves. The difficulties this climb presents, even for the most experienced climbers, are irrefutably highlighted. The film received the Genziana d'Oro award at the Trento Film Festival in 1973.