In 1885, young Rose Edwards is widowed by Montana vigilantes who hang her husband for an alleged theft, then burn her Yellowstone Valley cabin to the ground as a warning for her and others of her kind to quit the territory. Penniless and illiterate, yet fiercely independent, Rose begins a two-year odyssey to revisit the land of her childhood, a land she once traveled with her father, an itinerant robe trader among the Assiniboines and Blackfeet. But the old ways of the hunter and trapper are disappearing. European investors are flooding the bison ranges with vast herds of cattle, raising mansions and polo fields on ground once claimed by teepees and sod-roofed hunters' shacks. With an aging roan gelding named Albert as her closest friend, Rose finds herself a reluctant hero in an ageless battle, the face of an indigenous population, both native and white, as she stubbornly pushes back against the invading aristocracy. And hanging over her every decision is an alcoholic father, who hunts bison inside the newly formed Yellowstone National Park, selling the mounted heads and tanned robes to Eastern tourists even as his daughter makes her stand against the destruction of the land she loves.