L'homme de la plaine

...with this Technicolor tale examining vengeance, moral culpability, and familial loyalty. Stewart plays Will Lockhart, whose brother was killed in a cavalry ambush. The ambush was carried out by the Apaches. The question Lockhart wants answered is who provided the Apaches with the rifles used in the attack. His journey takes him to a sprawling ranch in New Mexico, lorded over by Alec Waggoman (Donald Crisp), a man who may have lived by the ethos of rugged individualism, but now, in his twilight, develops a belated sense of right and wrong.

The film also stars Arthur Kennedy as the faithful ranch employee who simmers with resentment over not being appreciated; Alex Nicol as Waggoman's hotheaded son, a character with a violent streak; and Cathy O'Donnell as Alec's niece and Lockhart's love interest.