The American west is the birthplace of legends. Before the outlaws, lawmen, gamblers, and cowboys made their mark however, the lands west of the Mississippi were explored by a certain 'reckless breed' of individuals. Men we know as mountain men. These doughty men who braved empty plains, forbidding mountain ranges, and turbulent rivers, did so seeking one thing: beaver pelts, or as they called them plews. Battered by extremes of weather, menaced by beasts with little fear of man, and harried by unpredictable Indians, the mountain men risked their lives to harvest the valuable furs. Stories came downriver of a place where the beaver were abundant and the finest plews on God's earth could be found. The stories were sporadic however, as few men had ever trapped the area and lived to tell the tale. The place was called 'Three Forks' and was the home of the Blackfoot, the most feared tribe of Indians in the mountains. Seasoned trapper Walter Hatcher knew that if a group were to trap the 'Three Forks' successfully it would be made up of the toughest bunch of men he could find. Trappers with cunning and courage beyond that of other men would have to come together in order to bring home the plews. If such an audacious plan were to be carried out, those who accomplished the feat would surely be known as the most daring of the 'reckless breed' and that is just what Hatcher sets out to do. Almer Johnson did not consider himself reckless, or much of anything at all, as he works on the St. Louis docks. When an unexpected opportunity arises to join a fur trapping expedition the young man seizes the chance to make something of himself. Facing danger at every turn, Almer sets his poles for the mountains knowing he will be lucky if he makes it back with his scalp, but willing to take the risk for the plews.