Continuing the mini-series about love and adventure in the Great American West. Gus McCrea and Woodrow Call, two retired Texas Rangers, lead a peaceful existence in the small Texas town of Lonesome Dove. Then an old friend of dubious repute arrives, telling tales of the fortunes to be made in the uncharted territory of Montana. The pair are thus persuaded to undertake a hazardous cattle drive to build an empire in the new land.