Overview
Glacier pilot Hermann Geiger flies over a four-thousand-meter peak in the Valais Alps and observes a glacier collapse. The next day, three rope teams climb through this glacier to Dent Blanche. However, Dr. Gruber, accompanied by his wife, a young engineer named Gisler with his girlfriend Monica, two young men named Charly and Roby, mountain guide Perren, and the athletic Englishman Puckle get caught in a storm. Due to the weather conditions, Gruber slips and drags the other participants down with him. His wife, who had stayed behind in a hut, alerts the mountain rescue service. The storm initially prevents glacier pilot Geiger from taking action, but he then risks a breakneck landing to rescue the group.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 33 | November 26, 2014 (89) | |
 | 42 | July 8, 2010 (94) | |
 | 32 | January 29, 2000 (73) | |
 | 64 | November 24, 1969 (75) | |
| 44 | August 26, 1966 (51) | |
 | 39 | February 5, 2009 (89) | |
 | 23 | 89 | |
 | 44 | February 29, 1992 (77) | |
| - | - | |
 | 59 | December 16, 1979 (80) |