Bat-Supe! #75: “The Secret Letter” Part 1

We’re kicking off a brand new adventure gang! After saving the planet Apollo from destruction, Superman realizes his secret identity is in grave jeopardy and rushes back to Earth, but will he make it in time? Plus, in today’s Important Message, there’s never been a better time to join the Bat-Supers!

Part 1 of “The Secret Letter” was originally broadcast on November 25, 1946!