Two of the world’s most accomplished ski mountaineers, Christina Lustenberger and Guillaume Pierrel, have carved their names into history with bold first descents across the globe. Now, turning their sights on Mount Robson, the highest and most formidable peak in the Canadian Rockies, they retrace the steps of pioneering alpinists who came before them, pushing the line between past and present. Battling towering walls of ice, snow and rock, unpredictable weather, and the weight of a dream that h...