_Joe Kenmore's mission was as dangerous as it sounded simple:_
"DELIVER SUPPLIES AND ATOMIC WEAPONS TO THE SPACE PLATFORM.
THEN PREPARE FOR MAN'S FIRST EXPEDITION TO THE MOON."
Joe had helped launch the first Space Platform--that initial rung in
man's ladder to the stars. But the enemies who had ruthlessly tried
to destroy the space station before it left Earth were still at
work. They were plotting to stop Joe's mission!