Breakheart Pass

In the 1870s, residents of the Fort Humboldt frontier outpost of the United States Army are suffering from a diphtheria epidemic. A special express train is heading up into the remote mountain ranges towards the fort filled with reinforcements and medical supplies. The train's cargo transports a large secret shipment of weapons, rifles, ammunition and dynamite stolen from U.S. arms manufacturers for sale to the Indians. Most of the people on the train, including Governor Fairchild and his fiancée Marica, are Calhoun's partners in crime.