The book tells the story of two retired Texas Rangers who embark on a perilous cattle drive from Texas to Montana in the 1870s. The narrative focuses on the duo's adventures and the characters they meet along the way, including a variety of outlaws, Indians, and settlers. This epic tale of the Old West explores themes of friendship, unrequited love, and the harsh realities of frontier life.

"Riders of the Purple Sage" is a classic Western novel that tells the story of a woman named Jane Withersteen, who is persecuted by her Mormon fundamentalist church community in Utah for her friendship with a non-Mormon man. She is protected by a mysterious rider known as Lassiter, a gunslinger who is seeking revenge for the death of his sister. The novel explores themes of religious intolerance, the struggle for personal freedom, and the violent frontier life in the American West.

The novel follows the journey of a young woman from rural Kentucky who, on her drive west to avoid an unwanted pregnancy, is unexpectedly entrusted with a three-year-old Native American girl. The protagonist settles in Tucson, Arizona, where she builds a non-traditional family with a group of resilient and unconventional women. The narrative explores themes of love, friendship, and the power of the human spirit while tackling issues of social injustice and immigration.