Space 1999

An alien ruler plans to use the Alphans as fuel for a biological computer.

Bizarre capsules circling Moonbase Alpha contain ancient killers in suspended animation.

Helena, John and Alan travel back in time to plague-infested Scotland.

A race of superior robots forces Helena and Tony to teach it human emotions.

A willful computer forces Helena and Koenig to accompany it to a poisonous plane.

A godlike being offers the Alphans a chance to live on a planet resembling Eden.

Cryogenically preserved beings infect the crew with a deadly disease.

As punishment for destroying vegetation, Maya and Koenig must battle three aliens.

A living rock in desperate need of water enslaves Tony and paralyzes Helena.

A magical trader agrees to send the Alphans back to Earth in exchange for Maya.

Ship's engineer Tony Osgood believes he can obtain titanium, to make a new heart for his sick wife Michelle, from the catacombs of the moon, using dynamite. The explosion which follows gives him a vision of the future in which the ship is pursued by a fireball and this comes true

The Alphans discover the cocoons of deadly chlorine-breathing monsters (Ina Skriver, Sarah Douglas).

A miner has vivid visions of his wife's demise and Moonbase Alpha's destruction.

A strange cloud drifts over the base and causes most of the crew to be stricken with illness. A monster, the 'cloud creature' appears out of the cloud and runs amok on the base.

Koenig and Verdeschi are sucked into a space warp. A feverish Maya is stricken with a fever that causes her to transform into a repulsive space monster.

Several crew members explore the planet Sunin, including botanist Shermeen Williams, who appears to have visionary gifts. She links up with an alien, called Vindrus, who wants her help in transferring his body and that of his race, into solid matter, giving them proper human form so that they can join the universe as real matter.

A cosmic cloud gives a crew member (Deborah Fallander) paranormal abilities; guest Jess Conrad.

Aliens disguised as friends from Earth trick all but Koenig.

Koenig and Maya fight to save Moonbase Alpha from deadly aliens.

Some subterranean miner start chanting for a planet that will cause the Moon to pass through a nebula deadly to those living at Moonbase Alpha.

When a ship carrying a prisoner lands at Moonbase Alpha after asking for assistance, Maya insists that the prisoner is a poet and not a murderer and releases him.

Answering a distress signal, Commander Koenig is forced to do a crash-landing.

Koenig must convince a powerful alien bent on destroying all visitors to set the Alphans free.

The Dorcans demand that Moonbase Alpha hand over Maya so that the use of her brain stem can continue their immortal existence.