Blind Pete Horne knows the location of the Lost Spanish Silver Lode, but is knifed before he can tell anyone. His seeing eye dog, Duke, brings Rex Allen and Gabriel Horne to Pete's lifeless body. They set out to find the killer and run into trouble near Silver City, Arizona, when they rescue Katie McIntosh from a gang that is chasing her buckboard.

"Rip-roaring round-up of action! music! thrills!"