Mattie Ross is just fourteen when the coward Tom Chaney shoots her father down in Fort Smith, Arkansas, and robs him of his life, his horse, and $150 cash. Filled with an unwavering urge to avenge her father’s blood, Mattie finds and, after some tenacious finagling, enlists one-eyed Rooster Cogburn, the meanest available U.S. Marshal, as her partner in pursuit.