Lunar attack

Hurled from her ancient orbit by a nuclear holocaust, the Moon has become an interstellar wanderer. In their search for a new home planet, the personnel of Moonbase Alpha must now explore every possibility, no matter how bizarre or dangerous it might appear. When the red planet glowed on the black velvet pad of Main Mission's big scanner, their hopes were raised again. But as approach and reconnaissance procedures were begun, three alien ships in tight formation streaked into view—bringing a message of doom from their mothership, a mobile arsenal capable of blasting the entire Moon to dust.