On 14 July 150 years ago one of the most daring and dramatic first ascents in the history of the Alps came to an end: But during the descent four members of the seven-man expedition led by Edward Whymper fell to their deaths – after a rope broke. However, Whymper managed to make his name internationally famous as a heroic Alpine climber with his version of the Matterhorn drama.
Can the circumstances of the tragedy still be reconstructed? A descendant of the two mountain guides Peter Taugwalder father and son starts his search for truth to find out what really happened during the first ascent of the Matterhorn.