Search Worlds Without End

Moonbase Alpha is Earth's supreme achievement. The dark side of the moon, once so mysterious, now stores containers of smoldering radioactive waste, refuse from Earth. Then, in 1999, the serene satellite is ripped apart by a thermonuclear explosion and the 311 inhabitants of Alpha whirl through space on a runaway moon where survival is a game of chance with the life forces of the universe.

A large asteroid hurtles through space on a collision course with the Moon. As Moonbase Alpha is located within the impact area, the staff quickly formulates a plan to avert disaster. To guarantee the asteroid's destruction, twelve nuclear charges will be planted at strategic locations.

But then a mysterious alien appears to Commander Koenig and says that their two worlds must collide for her race to be saved. Can Koenig believe her? Will anyone on Moonbase Alpha believe him?

Following the mind-staggering nuclear explosion which has sent the moon and its research station, Alpha, deep into space, Commander Koenig and his dedicated group of scientists have kept the base going and survived crisis after crisis.

Now a huge, mysterious object crashes into the moon a few miles from the research base. A search party goes out to investigate, and almost at once there starts a series of terrifying events which may put an end to the moon base's incredible odyssey.

Many and strange have been the adventures of Moon Base Alpha and its crew since the atomic waste pits on the dark side of the Moon exploded and sent them careering out of Earth orbit, deep into unexplored space.

Always they have managed to overcome their perils and continue their strange Odyssey. Now, at last they seem to have reached the end of the road, as caught in a weird cone of force emanating from a sentient planet, they find themselves ageing at an incredible rate and powerless to break free.

This alternate version of Space: 1999 has the moon being knocked into an alternate dimension, speeding away from Earth. Twenty years later, the Alphans have become their own culture, with their own history.

Excavation on the moon reveals a spaceship half a million years old, filled with mummies of being so close to humans that a deadly disease is passed on to the Alphans. While battling they disease, they are learning how the alien starship drive works and attempting to employ it for themselves, but their experiments trap the moon in the event horizon of a black hole. They manage to escape -- barely -- and suddenly find themselves back in orbit around Earth.

But is this devastated planet really Earth?

Blasted from Earth orbit by the explosion of radioactive waste pits on the lunar surface, the Moon has passed through a black sun into a strange, distant universe where few of the accepted laws of astrophysics apply. The stranded inhabitants of Moonbase Alpha have become interstellar wanderers, facing many hostile alien forces in their search for a new home.

The arrival of aliens from a dying planet offers the chance for one Alphan to travel with them to their final destination -- Earth... Planet Eden promises to bring the Alphans' long journey to an end, but the members of a survey team are stranded when their paradise suddenly becomes a living hell... A pair of alien exiles plan to use Moonbase Alpha as a platform from which to launch an invasion of their homeworld.