Border Rustlers (5/27/1938)

Cattle have been disappearing from several ranches. Once the animals get into the black hills of malpias - what once was lava - they are impossible to track. Once they cross the border, there's not much the sheriff can do about it. By chance, the rustlers drive the cattle past the camp of the Lone Ranger and Tonto, who set out to capture the rustlers, on both sides of the border!