The BEST Episodes of Space: 1999

Every episode ever - ranked by fan votes!

Last Updated: Nov 3, 2019

Network: ITV

It's 1999 and Moonbase Alpha has been built on the Moon to safeguard the nuclear waste shipped from Earth. On September 13, 1999, disaster strikes and the nuclear waste explodes causing a chain reaction that hurls the Moon out of Earth's orbit and into deep space. The adventures of Space: 1999 begin.


#1 - Breakaway

Season 1 - Episode 1

Suspected radiation from nuclear waste containers threatens a deep space probe from Earth's space research center on the moon. It is a prologue to disaster and mankind's most fantastic adventure.

star 7.55
206 votes
Directors: Lee H. Katzin
Writers: George Bellak
Guardian of Piri

#2 - Guardian of Piri

Season 1 - Episode 11

A mysterious power from an alien planet takes control of Alpha with the intent of luring its inhabitants to a paradise of eternal peace but also a place of living death. Commander Koenig is the only one capable of saving the Alphans from a terrible fate.

star 7.38
52 votes
Writers: Christopher Penfold
Death's Other Dominion

#3 - Death's Other Dominion

Season 1 - Episode 5

Commander Koenig and his colleagues speed through space and time into a chilling world of ice. However, once there, they encounter people who appear to be former inhabitants of earth stranded there when their expedition crashed on the planet they call Ultima Thule.

star 7.38
74 votes
Writers: Anthony Terpiloff, Elizabeth Barrows
The Testament of Arkadia

#4 - The Testament of Arkadia

Season 1 - Episode 23

In distant outer space, the Moon's random careening comes to a sudden halt as the Alphans discover what looks to be origins of life on Earth itself. Could this discovery spell the end of the Moon or the beginning of a new life for the Alphans?

star 7.36
44 votes
Directors: David Tomblin
Writers: Johnny Byrne
Force of Life

#5 - Force of Life

Season 1 - Episode 2

A terrifying force from Outer Space brings freezing death to Alpha personnel. One man has been chosen as the instrument of destruction.

star 7.36
153 votes
Directors: David Tomblin
Writers: Johnny Byrne
War Games

#6 - War Games

Season 1 - Episode 4

Moonbase Alpha finds itself at war with an unnamed planet. The outcome is disastrous. Everything is wrecked. But can there be a future for the survivors on the aggressor planet?

star 7.34
82 votes
Writers: Christopher Penfold
Dragon's Domain

#7 - Dragon's Domain

Season 1 - Episode 8

The Alphans encounter an eerie graveyard of lost spaceships that may be the result of encounters with a deadly monster in outer space. Is the threat real or imagined? Koenig must determine the truth before it may be too late....

star 7.33
70 votes
Writers: Christopher Penfold
The Metamorph

#8 - The Metamorph

Season 2 - Episode 1

Alpha needs titanium to repair its life support system and traces of it are located on the planet Psychon that is near to the moon. However, Koenig and the others soon learn of a sinister mining operation operating beneath Psychon's surface and what it may spell for the Alphans.

star 7.31
57 votes
Writers: Johnny Byrne
Collision Course

#9 - Collision Course

Season 1 - Episode 3

Commander Koenig encounter a woman named Arra, who is older than Earth itself but breathtakingly beautiful as well. Is it destiny that the two met or something more? It all happens when the Moon is on a collision course with a planet many times its size.

star 7.31
111 votes
Writers: Anthony Terpiloff, Elizabeth Barrows
Black Sun

#10 - Black Sun

Season 1 - Episode 10

The moon base personnel find themselves on a collision course with an asteroid. However, the asteroid is deflected by a greater threat: an all-devouring black sun that will destroy Alpha unless things changes rapidly.

star 7.30
60 votes
Directors: Lee H. Katzin
Writers: David Weir
Another Time, Another Place

#11 - Another Time, Another Place

Season 1 - Episode 16

The people of Alpha are faced with a very strange phenomenon as they find themselves copied and encounter their future selves on Earth. The unspoken question is how long will this last and what does it mean for the Alphans..?

star 7.28
40 votes
Directors: David Tomblin
Writers: Johnny Byrne
Voyager's Return

#12 - Voyager's Return

Season 1 - Episode 6

Grim danger emerges from the past as Alpha is threatened with destruction from an unmanned spacecraft. The ship was sent up from Earth many years earlier with tragedy in its wake. If this threat wasn't enough, victims from outer space threaten revenge.

star 7.19
76 votes
Directors: Bob Kellett
Writers: Johnny Byrne
Space Brain

#13 - Space Brain

Season 1 - Episode 21

The Alphans encounter an intangible mass as the moon heads though space and it could spell disaster for them. The energy field seems to have a strange and frightening power that Koenig and the others try to figure out before it's too late.

star 7.17
36 votes
Writers: Christopher Penfold
The Bringers of Wonder (1)

#14 - The Bringers of Wonder (1)

Season 2 - Episode 18

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.

star 7.17
30 votes
Directors: Tom Clegg
Writers: Terence Freely
Journey to Where

#15 - Journey to Where

Season 2 - Episode 3

Moonbase Alpha learns that there is technology now on Earth that is capable of sending them home. However, the trip home hits an unexpected bump and Koenig, Carter and Dr. Russell find themselves in a strange place and time as a result.

star 7.15
33 votes
Directors: Tom Clegg
Writers: Donald James
Matter of Life and Death

#16 - Matter of Life and Death

Season 1 - Episode 13

Dr. Russell's long-lost husband, Lee, appears on an Eagle returning from an Earth-like planet. He warns that the planet is not for them and that a power greater than they can understand will destroy them if they go there. Koenig must decide whether to listen to Lee's warning or evacuate the Moon before it's too late.

star 7.15
51 votes
Writers: Art Wallace, Johnny Byrne
The Last Sunset

#17 - The Last Sunset

Season 1 - Episode 17

When the moon approaches a possibly habitable planet, probes launched from the planet miraculously give the moon full gravity and atmosphere. However, the new gifts also have a dark side, causing Eagle crashes and making Paul delusional.

star 7.15
42 votes
Writers: Christopher Penfold

#18 - Earthbound

Season 1 - Episode 14

People originating from a dying planet land on the moon and tell the Alphans that their spacecraft has been programmed to take them to Earth. With room on their ship to take one of the base's personnel, Koenig faces a dramatic decision..

star 7.12
48 votes
Writers: Anthony Terpiloff
The Infernal Machine

#19 - The Infernal Machine

Season 1 - Episode 18

The people of moonbase Alpha encounter something that is unlike anything they have encountered before:a machine that is alive and sentinent.

star 7.09
35 votes
Directors: David Tomblin
Writers: Anthony Terpiloff, Elizabeth Barrows
The Troubled Spirit

#20 - The Troubled Spirit

Season 1 - Episode 22

The Alphans find themselves encountering the ghost of a man who is still alive with horror and death being the result. Can Koenig stop the apparation or is the moonbase doomed?

star 7.08
38 votes
Directors: Ray Austin
Writers: Johnny Byrne
The Mark of Archanon

#21 - The Mark of Archanon

Season 2 - Episode 7

A survey below the moon's surface reveals a stasis chamber that the Alphans were unaware of. The chamber is found to contain two aliens, a man and a boy, in suspended animation. Once revived, the man identifies himself as Petrec and the boy Etrec and says they are emissaries from the planet Archanon. As Etrec is befriended, Helen discovers the two have a shared genetic disorder that may spell doom for everyone at the moonbase.

star 7.06
34 votes
Writers: Lew Schwartz
Mission of the Darians

#22 - Mission of the Darians

Season 1 - Episode 9

A call for help reaches Moonbase Alpha from the survivors of a dying world. The world is one that has been flying through space for 900 years with contrasting inhabitants. Some have never changed while others have reverted to barbarism. Does this new planet represent hope to the Alphans or something potentially dangerous?

star 7.05
58 votes
Directors: Ray Austin
Writers: Johnny Byrne
End of Eternity

#23 - End of Eternity

Season 1 - Episode 12

A terrifying power is unknowingly freed by the Alphans when they free a killer that seemingly can't be killed. How can Koenig and the others stop a psychopath that is virtually immortal?

star 7.04
52 votes
Directors: Ray Austin
Writers: Johnny Byrne
New Adam New Eve

#24 - New Adam New Eve

Season 2 - Episode 6

The people of Moonbase Alpha are suprised by the sudden appearance in their midst of a man named Magus, who claims he was responsible for the moon's ceasing to move so he could speak to the Alphans. Magus says he has created a planet that is the equivalent of a second Eden and transports Koenig, Tony, Maya and Dr. Russell there for them to see the world. However, the four quickly learn the real truth behind the sights that they see and the peril they face.

star 6.97
35 votes
Writers: Terence Freely
The Lambda Factor

#25 - The Lambda Factor

Season 2 - Episode 17

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.

star 6.97
32 votes
Writers: Terrance Dicks