The all-new series casts a spotlight on the elite crews assembled to keep the nation's critical freight and passenger trains rolling during the winter months by battling deadly avalanches, monster icicles, steep rockslides, and dangerous wildlife. Featuring the Canadian Pacific Railway and the Ontario Northland Railway, ROCKY MOUNTAIN RAILROAD takes viewers on an exclusive journey to Canada's most extreme railways, where the resilient crews do whatever it takes to keep the critical lifeline running smoothly.