Oh God! Do I ever remember this serial. I watched it in black and white, which it still is at home during the fifties as a child. I loved Gene Autry, Roy Rogers and all those singing cowboys. This serial has it all, classic Western shticks, ray guns, invisible people, and guess what people from inside the Earth.
Mmmm. Think this might be why I got so hooked on the idea of writing Journey to the Center of the Earth?
First chapter only.
Kick your shoes off, suspend you disbelief for fifteen minutes of viewing pleasure in black and white nostalgia!