William Sublette is one of the greatest mountain men and businessmen who ever ventured into the Western Frontier. Using his intelligence, ambition, and fortitude, he rises to the top of a business where success involves putting one’s life on the line every day. His path to success begins when he joins Jedediah Smith to take over the fur company started by their mentor William Ashley.
After nearly losing his business and his life in the first year, Sublette developed an audacious plan to outdo his rivals by transporting goods to and from the Rocky Mountains by wagon train for the very first time. His successful venture paves the way for the countless trains on the Oregon Trail in the years to follow. But Sublette jeopardizes his life and newfound fortune when he rushes into battle to save his comrades from the fierce Gros Ventre Tribe.