All 24 episodes from the second series of the popular sci-fi show. In 'The Metamorph' a team of Eagle pilots are captured on the planet Psychon by the ruthless Mentor (Brian Blessed). 'The Exiles' has the Alphans revive two aliens who turn out to be rebel leaders. 'One Moment of Humanity' sees Helena (Barbara Bain) and Tony (Tony Anholt) abducted by an alien (Billie Whitelaw) who plans to use them as blueprints for killer androids. In 'All That Glisters' Koenig (Martin Landau) leads a mission to a nearby planet in search of a mineral vital to the life support system on Moonbase Alpha. 'Journey to Where' has Koenig, Helena and Carter (Nick Tate) attempt to teletransport themselves to 22nd century Texas and end up in 14th century Scotland instead. 'The Taybor' sees Alpha visited by a travelling trader who wants to add Maya (Catherine Schell) to his collection of beautiful artefacts. 'The Rules of Luton' finds Koenig and Maya in trouble with the locals during a visit to Luton. 'The Mark of Archanon' has the Alphans discover two aliens frozen beneath the surface of the moon. 'Brian the Brain' sees the moonbase visited by an old Earth spaceship piloted by a lone computer called Brian (voiced by Bernard Cribbins). 'New Adam New Eve' finds Koenig, Helena, Maya and Tony caught up in the plans of one Simon Magus (Guy Rolfe), a cosmic magician who is attempting to discover the secret of life. In 'Catacombs of the Moon' engineer Patrick Osgood (James Laurenson) searches for a rare metal essential for the construction of the replacement heart needed to save the life of his wife Michelle (Pamela Stephenson). 'The AB Chrysalis' has Alpha surrounded by a mysterious ring of moons. 'Seeds of Destruction' sees Alpha endangered by Koenig's evil double. 'The Beta Cloud' finds a huge and terrible creature (Dave Prowse) on the rampage at the moonbase. 'Space Warp' has Maya afflicted with a terrible sickness which causes her to transform into various space monsters. 'A Matter of Balance' sees the Alphans visited by a strange alien made of anti-matter. In 'The Bringers of Wonder - Part 1' the Alphans are overjoyed when an Earth transporter arrives with their friends and relatives, but why does Koenig view these visitors as hideous aliens? 'The Bringers of Wonder - Part 2' finds Koenig trying to persuade his otherwise-convinced colleagues that he is sane. 'The Lambda Factor' has Koenig investigating a possible murder on the moonbase. 'The Seance Spectre' sees Koenig's authority threatened in a mutiny lead by Greg Sanderson (Ken Hutchison). 'Dorzak' finds Alpha visited by a Psychon philosopher. 'Devil's Planet' has Koenig imprisoned on a strange moon by a race of whip-wielding Amazon guards. 'The Immunity Syndrome' sees Koenig and his team visit an Eden-like planet inhabited by an immortal being. And finally, in 'The Dorcans', the Dorcan leader Archon (Patrick Troughton) threatens the Alphans with destruction unless they surrender Maya.