The crew of Moonbase Alpha must struggle to survive when a massive explosion throws the Moon from orbit into deep space.
Breakaway
1 - 1 September 4, 1975
Force of Life
1 - 2 September 11, 1975
Collision Course
1 - 3 September 18, 1975
War Games
1 - 4 September 25, 1975
Death's Other Dominion
1 - 5 October 2, 1975
Voyager's Return
1 - 6 October 9, 1975
Alpha Child
1 - 7 October 16, 1975
Dragon's Domain
1 - 8 October 23, 1975
Mission of the Darians
1 - 9 October 30, 1975
Black Sun
1 - 10 November 6, 1975
Guardian of Piri
1 - 11 November 13, 1975
End of Eternity
1 - 12 November 20, 1975
Matter of Life and Death
1 - 13 November 27, 1975
Earthbound
1 - 14 December 4, 1975
The Full Circle
1 - 15 December 11, 1975
Another Time, Another Place
1 - 16 December 18, 1975
The Last Sunset
1 - 17 January 1, 1976
The Infernal Machine
1 - 18 January 8, 1976
Ring Around the Moon
1 - 19 January 15, 1976
Missing Link
1 - 20 January 22, 1976
Space Brain
1 - 21 January 29, 1976
The Troubled Spirit
1 - 22 February 5, 1976
The Testament of Arkadia
1 - 23 February 12, 1976
The Last Enemy
1 - 24 February 19, 1976
The Metamorph
2 - 1 September 4, 1976
The Exiles
2 - 2 September 11, 1976
Journey to Where
2 - 3 September 18, 1976
One Moment of Humanity
2 - 4 September 25, 1976
Brian the Brain
2 - 5 October 2, 1976
New Adam, New Eve
2 - 6 October 9, 1976
The Mark of Archanon
2 - 7 October 16, 1976
The Rules of Luton
2 - 8 October 23, 1976
All That Glisters
2 - 9 October 28, 1976
The Taybor
2 - 10 November 4, 1976
Seed of Destruction
2 - 11 November 11, 1976
The AB Chrysalis
2 - 12 November 18, 1976
Catacombs of the Moon
2 - 13 November 25, 1976
Space Warp
2 - 14 December 2, 1976
A Matter of Balance
2 - 15 December 9, 1976
The Beta Cloud
2 - 16 December 16, 1976
The Lambda Factor
2 - 17 December 23, 1976
The Bringers of Wonder (1)
2 - 18 August 4, 1977
The Bringers of Wonder (2)
2 - 19 August 11, 1977
The Seance Spectre
2 - 20 August 18, 1977
Dorzak
2 - 21 August 25, 1977
Devil's Planet
2 - 22 September 1, 1977
The Immunity Syndrome
2 - 23 October 29, 1977