Sounded version of the 1928 film 'Der Kampf ums Matterhorn'. The added sound track included music composed by Schmidt-Boelckeb and dubbed dialogs by different actors. This version is slightly shorter than the silent film due to the disappearance of the movie titles. The story, based on the novel by Carl Haensel recreates the struggle between Edward Whymper and Jean-Antoine Carrel for the first successful ascent of the Matterhorn in 1865. In 1938 two new versions of the movie were filmed under the direction of Luis Trenker, who acted again in the role of Carrel. One version was shot in German (Der Berg ruft) and the other in English (The Challenge).