1980 — Unidentified Flying Objects race through the skies like bats out of hell, blasting... killing... vanishing to an unknown alien world.
With lunar missiles, orbiting satellites and manned supersonic warheads, Supreme Headquarters, Alien Defence Organization, makes ready to seek, find and destroy the intruders.
Only SHADO stands between an unsuspecting world and the terror unleashed by a dying planet...
MEET THE SPACE GUERILLAS
Code name SHADO. The most secret, sophisticated — and important — group on Earth. Only they know that mankind is under attack by a hostile intelligence from outer space.
A silent, invisible invasion by deadly aliens, bent on conquest and extermination. And SHADO's mission is to seek, find and destroy the un-humans.
Why were the aliens kidnapping humans? SHADO had to know fast. They thought they scored when they captured an alien alive. But when he died, the mission of the un-human invaders become horrifyingly clear...