Synopsis
The JSA has been beaten by the mysterious Fire People, so Dr. Grover Conrad and his assistant jack-hammer a message of warning on the side of the mountain for future generations. Ten days earlier, the arrival of yellow comets spur the JSA to investigate, and their encounter with a meteor sends them to Dr. Conrad, who explains one of the meteor’s radiation emissions had imprinted a movie on some blank film her had left nearby.The movie was from the long past revealing the arrival of the Fire People back then and their theft of radium -together with the threat they pose for the future. The JSA decides to act and destroy the menace before it’s too late.