| **** YEAR ONE **** |
|---|
| 1a | Breakaway | Moon blasted into deep space |
| 1b | Matter of Life and Death | Helena finds missing husband |
| 1c | Black Sun | Cannot avoid mysterious forces |
| 1d | Ring Around the Moon | Brain-like, planet-sized probe |
| 1e | Earthbound | Gentle aliens on way to Earth |
| 1f | Another Time, Another Place | Dopplegangers of Alpha(ns) |
| 1g | Missing Link | Koenig tested by aliens |
| 1h | Guardian of Piri | Computer enforces perfection |
| 1i | Force of Life | Man can drain anything's heat |
| 1j | Alpha Child | Baby ages rapidly, murderously |
| 1k | The Last Sunset | Moon is given an atmosphere |
| 1l | Voyager's Return | Earth probe with deadly past |
| 1m | Collision Course | Koenig resists saving the Moon |
| 1n | Death's Other Dominion | Stray Earth crew are immortal |
| 1o | The Full Circle | Alphans meet own Stone Age |
| 1p | End of Eternity | Immortal prisoner terrorizes |
| 1q | War Games | Battle irreparably damages base |
| 1r | The Last Enemy | Moon becomes missile platform |
| 1s | The Troubled Spirit | Man haunted by his own ghost |
| 1t | Space Brain | Crushing foam protects object |
| 1u | The Infernal Machine | Sentient ship, human companions |
| 1v | Mission of the Darians | Civilization, barbarism on ark |
| 1w | Dragon's Domain | Deadly creature haunts a man |
| 1x | The Testament of Arkadia | Past, future hope of dead world |
| **** YEAR TWO **** |
|---|
| 2a | The Metamorph | Computer drains mind; meet Maya |
| 2b | The Exiles | 53 missiles contain prisoners |
| 2c | One Moment of Humanity | Robots seek human emotions |
| 2d | All that Glisters | Living rock takes control |
| 2e | Journey to Where | Earth return? Time differences |
| 2f | The Taybor | Traveling trader covets Maya |
| 2g | The Rules of Luton | Plants rule world, judge others |
| 2h | The Mark of Archanon | Dig up violence-infected aliens |
| 2i | Brian the Brain | Over-friendly sentient computer |
| 2j | New Adam New Eve | "Creator" appears, experiments |
| 2k | The AB Chrysalis | Deadly explosions guard planet |
| 2l | Catacombs of the Moon | Visions haunt man, dying wife |
| 2m | Seed of Destruction | Mirror image of Koenig, energy |
| 2n | The Beta Cloud | Alphans ill, rampaging monster |
| 2o | A Matter of Balance | Alien seeks reversal of fate |
| 2p | Space Warp | Maya sick; John, Tony stranded |
| 2q | The Bringers of Wonder (part 1) | Earth sends rescue mission... |
| 2r | The Bringers of Wonder (part 2) | ... really aliens with a hunger |
| 2s | The Lambda Factor | Some Alphans turn psychic |
| 2t | The Seance Spectre | Delusional Alphans make turmoil |
| 2u | Dorzak | Psychon man declared a "plague" |
| 2v | Devil's Planet | Prison moon, dead homeworld |
| 2w | The Immunity Syndrome | Alien presence, deadly insanity |
| 2x | The Dorcons | Powerful aliens hunt down Maya |
| **** YEAR THREE **** |
|---|
| 3a | Message from Moonbase Alpha | Settle Terra Alpha, call Earth |