An Army deserter accused of murder takes Billy Blue as hostage.
Graham Jessup enlists Billy Blue to help him escape by fabricating a story that he has been mistreated because he is a Negro. Jessup makes Billy his prisoner when the young man hesitates to lead him into forbidden Apache land. The pair are cornered in the forbidden land by a large band of Indians, complicating the rescue efforts of John Cannon, Buck and the cavalry.
