Reagan and Bennett are brothers who choose opposite sides during the Civil War, Reagan going to the defense of the Confederacy and Bennett fighting for the Union. Both become cavalry officers and come into conflict when Bennett is sent out to Arizona to defend gold shipments that Reagan is
raiding. Some of the northerners try to persuade local Apaches to attack the Confederates, but Reagan confers with the Apache chief and tells him not to get involved in the fight, realizing that once the Indians take to the warpath they will wipe out every white man and woman in the territory,
including his ex-fiancee, Fleming, and her husband, Ridgely. However, after a white mur...