Blasted out of orbit by erupting atomic waste pits, the Moon and its captive Earthmen on Alpha Base hurtle into deep space, all contact with Earth lost.

Suddenly, as they plunge into uncharted galaxies, the Alphans are attacked by an alien force on the run from its own planet. At first, the renegades demand only refuge from their pursuers but after a new-born baby is mutated and its mother killed, Alpha's commander John Koenig realises the invaders are not merely commandeering the base but also their bodies...

THEIR ONLY WORLD IS THE MOON — WITHOUT THE EARTH!

A freak explosion blasts the moon out of orbit. And the men and women of Moonbase Alpha become courageous travellers on man's first intergalactic odyssey.

Joy turns to terror when Alpha's first infant grows up in a matter of seconds...an alien "gift" transforms the barren moon into a sunny Eden...a deadly but primitive rocket from Earth makes Alpha the target for mass revenge...and the interstellar journey becomes a personal hell for the crew when they see how their lives might have been!

Blasted out of its ancient orbit round Earth by exploding atomic waste which had been stored on its surface, the moon and its captive Earthmen hurtle into the vastness of space.

The inhabitants of Moonbase Alpha discover that they are still alive and are able to continue their life support systems. They even have the remnants of the Eagle fleet of space ships with which to evacuate to a New World, should such a planet be found. But the prime requisite in this totally alien situation is the will to survive, the need to retain some form of normality. So, when Cynthia Crawford successfully reaches the end of her pregnancy, all seems to be re-establishing itself into an acceptable order.

But after the new-born baby is horribly mutated and its mother killed, Alpha's commander John Koenig, realises that they are in the hands of an alien force, on the run from its own planet, which threatens not only to commandeer the entire moonbase, but also their bodies...