The Stalking Moon is a 1968 Western directed by Robert Mulligan and based on the novel by Theodore V. Olsen. U.S. soldiers are rounding up Apache Indians in Arizona when they find that a white woman, Sarah Carver (Eva Marie Saint), and her 9-year-old half-breed son (Noland Clay) are among the Indian people. When Sarah begs a retiring army scout, Sam Varner (Gregory Peck), to take her away from the Indians, he agrees to escort her to his own ranch in New Mexico. As Sam takes them on the long journey to his ranch, he learns that an Indian warrior named Salvaje (Nathaniel Narcisco) is following them. Salvaje is the father of Sarah's son, and he is outraged that she took his boy away. Although he is reluctant at first, Sam decides to fight to prevent Sarah and her innocent son from again falling into the hands of the bloodthirsty Salvaje.