The Canadian Pacific Railway was built more than 135 years ago and snakes 5000 kilometers across Canada, the steel backbone that ties the country together, bringing vital supplies, food, and fuel across the territory. The most challenging and extreme stretch of the route runs through mountains, the tracks clinging to edge of ice-encrusted rocks. This heart-pounding series takes you into the heart of the operation of the railroad. In this episode, when a massive snowstorm hits, an avalanche warning threatens to derail one of Canadian Pacific's most important $50 million loads.

The Canadian Pacific Railway was built more than 135 years ago and snakes 5000 kilometers across Canada, the steel backbone that ties the country together, bringing vital supplies, food, and fuel across the territory. The most challenging and extreme stretch of the route runs through mountains, the tracks clinging to edge of ice-encrusted rocks. This heart-pounding series takes you into the heart of the operation of the railroad. In this episode, when a massive snowstorm hits, an avalanche warning threatens to derail one of Canadian Pacific's most important $50 million loads.