- 9.0/101 votes
#1 - The Last Enemy
Season 1 Episode 24 - Aired 2/19/1976
The Moon approaches a solar system with two planets on opposites sides of its sun. The Alphans are trapped in an interplanetary conflict when warships from both worlds trespass on the Moon to fire missiles at their opponents' planets. After taking in a refugee from a destroyed gunship, the Alphans discover they have drifted into the middle of a literal war of the sexes.
Director: Bob Kellett
Writer: Edward di Lorenzo
- 7.5/102 votes
#2 - Voyager's Return
Season 1 Episode 6 - Aired 10/9/1975
The automated Earth space probe Voyager One is approaching the Moon. With the radioactive exhaust from its engine certain to extinguish all life on Moonbase, the Alphans try to gain control and shut down the drive. Help comes when the probe's designer is found living on Alpha under an assumed name. However, Voyager is being followed by alien ships seeking revenge.
Director: Bob Kellett
Writer: N/A
- 7.0/102 votes
#3 - Another Time, Another Place
Season 1 Episode 16 - Aired 12/18/1975
After an encounter with a space-time anomaly, the Alphans find their Moon back in the Solar System on a course to re-enter Earth orbit. The celebration ends when it becomes apparent Earth is an inhospitable wasteland. The mystery deepens when they discover a duplicate Moon already in orbit and a duplicate Moonbase Alpha lying empty and deserted.
Director: Bob Kellett
Writer: Johnny Byrne
- 4.0/101 votes
#4 - The Full Circle
Season 1 Episode 15 - Aired 12/11/1975
When exploring a habitable planet, members of the Alphan survey party vanish without a trace. Are they the victims of an indigenous tribe of Stone Age humanoids? The mystery deepens when a dead caveman is found to have capped teeth. Others soon notice the primitive cave chief and his mate bear an uncanny resemblance to the missing John Koenig and Helena Russell.
Director: Bob Kellett
Writer: N/A