Season 2

1. Episode 1: The Metamorph Close   

   An Eagle is sent onto the surface of the planet Psychon, which has titanium, needed for repairs to the Alpha Base. It fails to return and is used by Psychon scientist Mentor as bait with which to entice other members of the Alphan crew onto the planet. Mentor is building a computer but it will be fuelled by the living brains of humans, and he has his eye on those of the Alphan crew. Fortunately his daughter, the shape-shifting Maya, does not share her father's views and is on the side of the Alphans.

2. Episode 2: The Exiles Close   

   With Maya now a crew member the Alphans discover a young couple called Cantor and Zova who have been in suspended animation for some while. They claim that they are exiles from the planet Golos, following an invasion, and ask for the help of Alphan crew members to restore the planet to them. Helena and Tony accompany them to the planet Golos, where it is apparent that they are not the young innocents they appeared to be.

3. Episode 3: Journey to Where Close   

   A transmission from Dr. Logan in Texas City leads the Alphans to believe that they can finally land back on Earth, though they have travelled through time and, when they touch down in Texas City, they will be in the twenty-second century. However, due to a hitch, they find themselves in a barren and hostile environment. It is Scotland in the fourteenth century where the Scots are at war with the English invaders.

4. Episode 4: One Moment of Humanity Close   

   A sinister woman called Zamara materializes on the shop, forcing Helena and Tony to accompany her to the planet of Vega, whose natives are anything but friendly. A servant of the Vegans, known only as Number Eight, informs the two Alphans that he and his race are the natural inhabitants of the planet and that Zamara and her race are androids, who, it turns out, want the Alphans to teach them warfare.

5. Episode 5: Brian the Brain Close   

   The Alphans encounter an eccentric and intelligent robot who is known as Brian the Brain. Brian's creator Captain Michael and his crew have all died in mysterious circumstances and Brian asks for the help of Koenig and his crew. However, it soon becomes very apparent that Brian is anything but harmless and was in fact responsible for the deaths of Captain Michael and his colleagues. And he is ready to do the same to the Alphans.

6. Episode 6: New Adam New Eve Close   

   The tall and imposing Magus arrives on board the ship. He claims godlike powers, namely that he effected the Creation. But he is now disillusioned with the way that Life has progressed and wishes to start again. He plans to mate Helena and Tony and Maya with Koenig. But of course he is not God but a renegade cosmic sorcerer, and quite illogical at that, who needs to be controlled.

7. Episode 7: The Mark of Archaron Close   

   The latest extra-terrestrials to be rescued by the Moon Alpha Base crew are Pasc and his young son Etrec. They are from the usually peaceful planet of Archaron and they claim that they are victims of a rebellion, engineered by Pasc's wife Lyra. However, Helena discovers that they have both been infected with a virus which makes them considerably less friendly and more deadly than their initial claim.

8. Episode 8: The Rules of Luton Close   

   Whilst Koenig and Maya are exploring a planet called Luton, which is lush in vegetation, she picks a flower and he helps himself to some fruit. As a result they are put on trial for murder by three talking trees, the Judges of Luton. The trial is by combat and the pair must face three aliens, one with superstrength, one which can render itself invisible and one which can teleport.

9. Episode 9: All that Glisters Close   

   The Alpha Moonbase needs a rare ore known as Milgonite, which is detected on an extremely dry planet. Koenig leads a small landing force and discovers a glowing rock formation which comes alive and cuts off the party's links with the base. It is a trap - the planet needs water to survive and has lured the travellers there for the water in their bodies.

10. Episode 10: The Taybor Close   

    The expansive Taybor, an inter-galactic merchant arrives from hyper-space on his ship the 'Emporium'. He is offering to sell things to the Alphans. Koenig realizes that if the Taybor sold them his space-ship, it would enable the Alphans to fly back to Earth, but the price the Taybor is asking for this transaction is Maya.

11. Episode 11: Seed of Destruction Close   

    Whilst he is exploring an asteroid Koenig is taken over by an alien race known as the Kalthon, who replace him with an exact double. In consequence every action ordered by the fake Koenig is solely for the benefit of the Kalthon and to the detriment of the welfare of the Alphans. Helena realizes that something is wrong when 'Koenig' is cold to the touch and needs to convince the other crew members.

12. Episode 12: The AB Chrysalis Close   

    The Alphans land on a planet seemingly devoid of any human existence but being run by a group of machines. The machines explain to the visitors that their human overlords are in a state of regeneration but the chief machine, the Guardian, sees the Alphans as posing a threat and it is down to two newly regenerated females known as A and B to decide their fates.

13. Episode 13: Catacombs of the Moon Close   

    Ship's engineer Tony Osgood believes he can obtain tiranium, 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. Though Helena is making a new heart for Michelle Osgood becomes impatient and drags his wife back into the catacombs, giving Koenig a double task - to avoid the fireball and save the Osgoods.

14. Episode 14: Space Warp Close   

    An engineer working below the moon's surface in search of a rare mineral needed for Alpha's life support system and the building of an artificial heart for his wife starts to become unbalanced from the stress and pressure weighing on him. To that end, he undertakes a course of action that endangers many even as Koenig wonders if his rantings might be actually coming true.

15. Episode 15: A Mater of Balance Close   

    Koenig takes a landing party with him to explore the nearby planet Sunim. Once there, a party member's hallucinations quickly create complications for all of Alpha as they are faced with a decision that could decide the fate of a race in another universe.

16. Episode 16: The Beta Cloud Close   

    An Eagle sent to probe a cloud responsible for a mysterious illness infecting most of Alpha returns with a menacing creature determined to take the life support core of Alpha. Can Tony stop the menace before it's too late?

17. Episode 17: The Lambda Factor Close   

    A strange space cloud appears in the vicinty of Alpha around the same time as a technician dies under mysterious circumstances. Before long, Koenig is locked in a battle of wills with a woman whose latent mental abilities have surfaced presumably due to the cloud's proximity.

18. Episode 18: The Bringers of Wonder 1 Close   

    A faster-than-light Super Swift ship arrives at Alpha, bringing friends and relatives and raising hopes that they will all be able to go home soon. But Koenig, recuperating from a brain injury, sees only hideous aliens in the visitors.

19. Episode 19: The Bringers of Wonder 2 Close   

    Koenig desperately tries to convince the others that they're only seeing illusions and that the aliens are actually after energy that they can only get by destroying Alpha.

20. Episode 20: The Seance Spectre Close   

    An Alpha crewman starts believing he's psychic and can sense a habitable planet nearby, leading his team to mutiny and endangering Alpha when Koenig finds that the Moon and the planet are actually on a collision course.

21. Episode 21: Dorzak Close   

    An alien space ship approaches Alpha asking for emergency assistance upon contact. They discover that they are a prison transport ship carrying a prisoner called Dorzak to life in prison on an asteroid. However, Maya knew Dorzak and claims he is a poet and not a mass murderer and releases him.

22. Episode 22: Devil's Planet Close   

    Koenig explores a planet that was devastated by some sort of weapon that killed all the inhabitants but did not affect the plants or destroy any buildings. He discovers that there is life on one of the moons and when he goes to investigate, he crash lands, and realizes that the moon is a prison and the inmates don't know they have no one to go home to.

23. Episode 23: The Immunity Syndrome Close   

    Commander Koenig and company find what appears to be a habitable planet - but it is rules by a single being who, in its efforts to make contact with the Alphans, unwittingly puts them in the peril of their lives...

24. Episode 24: The Dorcons Close   

    The Dorcons are a race of conquerors who can live forever by transplantation of a Psychon brain stem. Maya, the last known Psychon, is traced to Moonbase Alpha by the Dorcons, who threaten the Alphans with destruction unless Maya is handed over.