Ranch workers disguised as soldiers murder Indians in order to stir up trouble with the whites so the rancher can claim their land.

After a bloody raid, the village's surviving settlers seek shelter in the nearby fort commanded by Captain Jackson.

He hires trapper Clint McPherson to investigate the cause of the Indian uprising, uncovering Morton's deceitful plan, which he tells Black Eagle.

Jack Lewis recalled that Ron Ormond asked him to write a draft of a script based on a magazine story called Fort Disaster adding Indians, cavalry and Frank and Jesse James.

[2] The Germans used the screenplay to bring back Tony Kendall as Black Eagle from The Pirates of the Mississippi with his frequent film partner Brad Harris.