Conquering The Alps (S05E01)

Chris embarks on an adventure through the Alps to explore six innovative mountain railways. Battling winter's harsh conditions of snow and ice, he traverses Austria and Switzerland, ascending to increasingly lofty tracks while uncovering the history and motivations behind these remarkable lines. His journey is filled with daunting 19th-century winter sports and a challenging ascent of the North Face of the Eiger. Can Chris triumph over the Alps, or will they ultimately prevail against him?