Marshal Matt Dillon stumbles upon the gruesome remains of a homestead massacre north of Dodge, the work of a well-armed Cheyenne war party. But when Matt and Chester investigate further, they discover a chilling truth—these Cheyennes weren’t just armed with traditional bows and arrows; they carried Spencer repeating rifles. Someone has been selling weapons to the tribes, fueling unrest and setting the stage for a violent uprising.

As Matt and Chester follow the trail of the gunrunners, they cross paths with a newly stationed cavalry unit, led by the overly cautious Captain Nichols. Misunderstanding Matt’s presence at the scene, Nichols arrests him and Chester, believing they might be connected to the illicit weapons trade. But once Major Honeyman intervenes, Matt is released and given permission to investigate deeper.

Risking his life, Matt ventures into a Cheyenne reservation to speak with Chief Long Robe, an old friend. Long Robe confirms that a rogue band of Cheyennes, led by a young warrior named Stone Eagle, has been receiving shipments of rifles at a secret meeting point near Rock Mound. With a war on the horizon, Matt and Chester must track the gunrunners before the weapons fall into more hands.

In a high-stakes ambush, Matt and Chester intercept the criminals at a hidden cabin just as a wagonload of rifles arrives. A gunfight erupts, leaving the gunrunners dead—but with Cheyenne scouts already watching, Matt knows it’s only a matter of time before the rest of the war party arrives. Just when all seems lost, Captain Nichols and his cavalry troop appear, scattering the warriors before they can retrieve the weapons.

With Stone Eagle out of ammunition, the threat of an all-out war is narrowly avoided, but Matt is left reflecting on the fragile peace in the West, where one bad deal can mean the difference between survival and destruction.

Keywords: "Gunsmoke Cheyennes episode," "February 1955 Gunsmoke radio," "Matt Dillon and Chief Long Robe," "Stone Eagle Cheyenne uprising," "gunrunners selling rifles to Indians," "Dodge City cavalry conflict," "classic Western radio series."

Cast: William Conrad, Parley Baer, Howard McNear, Georgia Ellis, Harry Bartell, Ralph Moody, Florence Dobkin, Barney Phillips, Vic Perrin.