A group of cattle rustlers is causing trouble, and the Cattlemen's Association hires the Mesquiteers to track them down. To infiltrate the gang, Tex Riley poses as Stony, allowing Stony to pose as a notorious outlaw and gather intel on the rustlers' next move. Meanwhile, Hartley, the mastermind behind the rustling operation, secretly joins the posse, plotting to eliminate the Mesquiteers.
Red River Range
Cattle rustlers, masterminds of precision, are secretly operating mobile slaughterhouses and refrigerated vans. In response, the governor entrusts the Three Mesquiteers with an undercover mission to uncover the truth.