The Silver Arrow, Part Six (Superman EP0263)

With Kent, Jimmy Olsen, Tumbleweed Jones, and schoolteacher Mary Lewis at his side, Superman faces the scorching heat and the perplexing riddles that lead them to a cave of secrets. As they follow the cryptic clues etched onto the Silver Arrows, the team stumbles upon a startling discovery that could change the course of their adventure – and possibly lead to a hidden treasure.

 Original Air Date: November 10, 1941