Tim McCoy played a cavalry officer dishonorably discharged for selling weapons to the Indians in this arguably his finest sound film and by many considered one of the best series Westerns produced in the 1930s. Leaving the army fort in disgrace along with his young foster son Jimmy Travers (Wally Albright), Capt. Tim Travers (McCoy) is soon joined by disgruntled cavalry Sergeant O'Brien
(Wade Boteler). But in their attempt to catch the AWOL O'Brien, the cavalry shoots and kills little Jimmy. A bitter Tim goes to live with the Arapahos but is once again arrested on charges of treason. Alas, when the tribe attacks the fort, it is Tim who prevents a wholesale slaughter. As a reward, as he is waving the white flag of truce, Tim is cowardly shot in the back by a half-crazed soldier. Mortally wounded in the battle, fellow officer Wheeler Oakman lives long enough to confess that it was he, not Tim, who had armed the Indians for profit. Happily, Tim's wound is not fatal and his bravery is rewarded with the position of new Indian agent.
