Will Cannon receives a telegram from Texas Ranger Tex Bodine that describes a murder that is going to take place in Santa Fe. The Murder for Hire Gang killed one old miner in Santa Fe and now they plan to kill another miner to keep him from testifying in court. An Indian named Grey Dog was suspected of a murder, and an Indian named Grey Dog is a member of the Blackman Gang. Blackman and his gang of murderous cutthroats killed Will's family in Virginia many years ago. Will goes to Santa Fe and then to Dallas, San Antone, El Paso, and Las Cruces to hunt down the hired killers working for the Murder for Hire Gang.