A magnificent tale of heart-stopping suspense from the highly acclaimed master of the genre. The Rocky Mountains, Winter 1873! One of the most desolate stretches of railroad in the West. Travelling along it is a crowded troop train, bound for the cholera-stricken garrison at Fort Humboldt. On board are the Governor of Nevada, the daughter of the fort's commander and a US marshal escorting a notorious outlaw. Between them and safety are the hostile Paiute Indians - and a man who will stop at nothing, not even murder!