290 votes
Space: 1999

Space: 1999

ITV 1975

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.

Warning: the following content contains spoilers!

The 10 Best Episodes of Space: 1999

Space: 1999 - S1E1

#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.

The episode was rated 7.55 from 211 votes.

Space: 1999 - S1E23

#2 - 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?

The episode was rated 7.36 from 44 votes.

Space: 1999 - S1E10

#3 - 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.

The episode was rated 7.36 from 58 votes.

Space: 1999 - S1E11

#4 - 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.

The episode was rated 7.34 from 50 votes.

Space: 1999 - S2E1

#5 - 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.

The episode was rated 7.33 from 58 votes.

Space: 1999 - S1E8

#6 - 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....

The episode was rated 7.30 from 69 votes.

Space: 1999 - S1E4

#7 - 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?

The episode was rated 7.30 from 83 votes.

Space: 1999 - S1E5

#8 - 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.

The episode was rated 7.28 from 75 votes.

Space: 1999 - S1E2

#9 - 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.

The episode was rated 7.28 from 158 votes.

Space: 1999 - S1E3

#10 - 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.

The episode was rated 7.26 from 117 votes.

Space: 1999 - S2E18
#11 - 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.

The episode was rated from 31 votes.
Space: 1999 - S2E5
#12 - Brian the Brain
Season 2 - Episode 5

Koenig leads a team to investigate a ship which resembles one launched from Earth years earlier that has landed on the moon. The ship is found deserted save for a mobile computer named Brian, who soon leads the Alphans into a dangerous situation.

The episode was rated from 40 votes.
Space: 1999 - S1E14
#13 - 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..

The episode was rated from 45 votes.
Space: 1999 - S1E16
#14 - 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..?

The episode was rated from 39 votes.
Space: 1999 - S1E6
#15 - 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.

The episode was rated from 74 votes.
Space: 1999 - S2E3
#16 - 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.

The episode was rated from 34 votes.
Space: 1999 - S1E21
#17 - 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.

The episode was rated from 35 votes.
Space: 1999 - S1E13
#18 - 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.

The episode was rated from 46 votes.
Space: 1999 - S2E7
#19 - 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.

The episode was rated from 33 votes.
Space: 1999 - S1E12
#20 - 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?

The episode was rated from 52 votes.

Last updated: may 16, 2022



This was my first contact with a SciFi show and my favorite as a kid. I had an Eagle model and build myself a Comlock and a Stun Gun out of Lego. I must have been 8 or 9 years old. The production value, thanks to the Andersons, was really good. It looked absolutly believable. Yeah, the science isn´t waterproof but this was the 70s. You got away with a lot. The second season was not as good as the first (I remember some really ridiculous space monsters). They tried to americanise it by implementing tons of changes that just didn´t work out with the established facts of the first season. And those changes were also not explained during the shows second year. It became a different show. All things considered this show is called a classic for a reason. As a fan of sci-fi you should have watched this at least once.


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