Raiders are terrorizing the buffalo range, wiping out hunters' camps. 'Notso' Wise, a former Texas Ranger, is recruited to bring the thieves to justice. Doubts exist that the local lawmen are pursuing the raiders with sufficient vigour, and Notso doubts he has the subtlety the job requires. The raiders are led by Jim Hardiman, a ruthless villain who uses a network of informers, backed up by cold-blooded murder. Has Notso got what it takes to bring him down?