As of July 2026, Space: 1999 Season 1 aired in 1975 with 24 episodes — streaming now on Amazon Prime Video. Full episode guide and where to watch below.
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Space: 1999 Season 1

1975 24 Episodes Sci-Fi & Fantasy ⭐ 7/10

If you want science fiction that respects its own premise, Space: 1999 Season 1 is available on and right now. The 1-season run is exactly the right length for what it is doing. 160 people have weighed in on TMDB, and the verdict leans heavily positive. Martin Landau sets the tone, and the world-building does the rest. Start it whenever you need something guaranteed to land.

Space: 1999 Season 1 is not trying to be everything to everyone, and that focus is exactly what makes it work. Space: 1999 Season 1 treats its concept seriously enough to follow it all the way through. Season 1 of Space: 1999 includes 24 episodes. It aired from September 1975 to February 1976. This season stars Martin Landau, Barbara Bain and Barry Morse. Martin Landau and Barbara Bain lead a cast that brings real weight to the material. It was aired in 1975. The rules of Space: 1999 Season 1's world are consistent enough that the big swings never feel like cheating. It knows exactly what it is, and does not try to be anything else.

Sci-fi fans who want ideas alongside the spectacle will find Space: 1999 Season 1 genuinely rewarding. It has built its own audience without needing a direct comparison. The complete run is available and best experienced without too much prior knowledge of where it goes. Martin Landau anchors it with a performance that makes the more abstract moments feel personal. If you have been burned by ambitious sci-fi before, this is the exception.

📡 Where to Watch Space: 1999 Season 1

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🎬 Space: 1999 Season 1 — Episode Guide

E1
Breakaway
1975-09-04
In September 1999, John Koenig reports to Earth's Space Research Centre at Moonbase Alpha as its new commander. A strange sickness is killing some of the Moonbase Alpha crew. Commander Koenig's investigation reveals that the source lies at Nuclear Waste Disposal Area 1 caused by excessive magnetic e...
E2
Force of Life
1975-09-11
The body of Anton Zoref is invaded by an unknown life force. The man soon manifests an uncontrollable ability to absorb energy. As the Alphans struggle to understand this mysterious force, Zoref's need becomes insatiable. Driven by instinct, he makes his way to the greatest source of energy on Alpha...
E3
Collision Course
1975-09-18
The Moon is on a collision course with an enormous planet. On a scouting mission, Koenig encounters Arra, the Queen of Atheria. The aged monarch proclaims the collision is a preordained event and must occur for her people to evolve to a higher plane of existence. Now Koenig must convince his staff t...
E4
War Games
1975-09-25
Approaching an inhabited planet, the Alphans are suddenly pounced upon by warships. In an unprovoked attack, Moonbase Alpha is devastated by Earth-style Hawk fighters. With 128 dead and Alpha unable to sustain life, Koenig and Helena appeal to the aliens for mercy. The aliens proclaim the Earthmen t...
E5
Death's Other Dominion
1975-10-02
On a frozen planet, the Alphans encounter shipwrecked humans from a lost expedition. The expatriates from Earth enjoy an idyllic existence: they have been made immortal and have lived there for over 880 years. They invite the Alphans to join them in paradise, but dissidents reveal all is not at it s...
E6
Voyager's Return
1975-10-09
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. ...
E7
Alpha Child
1975-10-16
The Alphans celebrate the arrival of the first child born on the Moon. The blessed event sours when the infant grows into a five-year-old child in minutes. Trying to accept him, the Alphans do not notice that little Jackie Crawford is much more than he seems. When hostile spaceships approach the bas...
E8
Dragon's Domain
1975-10-23
In 1996, Tony Cellini commanded a high-profile space mission which ended in disaster. The sole survivor, he told an outrageous tale of a spaceship graveyard and an alien 'dragon' which devoured his crew. Believed by no one, he was left a broken man. Five years later, the truth is revealed when the r...
E9
Mission of the Darians
1975-10-30
Encountering a derelict spaceship, the Alphans respond to an automated distress signal. On board, they discover what remains of the once-great civilisation of Daria: an elite group which maintains control of the ship and a tribe which has descended into savagery. The Alphans are appalled when they d...
E10
Black Sun
1975-11-06
The travelling Moon drifts within range of a black sun. Pulled toward certain destruction by its inescapable gravitational force, the Alphans employ desperate measures to stay alive. As a lifeboat Eagle carries six persons to safety, the Moon plunges into the black sun, with only an experimental for...
E11
Guardian of Piri
1975-11-13
Strange events befuddle the Alphans as they approach the planet Piri. When exploring its lifeless surface, Koenig encounters the seductive servant of the mysterious Guardian of Piri. She offers the wayward Alphans a life of peace and perfection. Realising the deadly truth behind the peace of Piri, K...
E12
End of Eternity
1975-11-20
While exploring an asteroid, the Alphans injure an alien trapped within. Bringing him to Alpha, they discover his wounds have completely healed. The indestructible Balor is a scientist whose people had discovered the secret of immortality. Balor is a psychopath, offering a drastic solution to his pe...
E13
Matter of Life and Death
1975-11-27
A lush Earth-type planet holds the promise of a new home for the people of Moonbase Alpha. When the reconnaissance Eagle returns, it carries an unexpected passenger: Helena's husband, who died five years ago. The mysterious Lee Russell tells the Alphans that death awaits them on the new planet. The ...
E14
Earthbound
1975-12-04
An alien spacecraft crashlands on the Moon, its passengers refugees from a dying world. As their destination is Earth, they generously offer to take one person with them when they depart. The scheming Commissioner Simmonds takes steps to ensure that he is the lucky individual chosen, even if it mean...
E15
The Full Circle
1975-12-11
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 un...
E16
Another Time, Another Place
1975-12-18
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 dup...
E17
The Last Sunset
1976-01-01
Anonymous alien benfactors provide the wandering Moon with a breathable atmosphere. The Alphans rejoice as they realise they have a wonderful new home in their own backyard. Preparations are made to settle and begin building a new civilisation on the Moon's surface. Koenig is suspicious of the alien...
E18
The Infernal Machine
1976-01-08
The Alphans are visited by a bizarre spacecraft, whose request for supplies hides a deeper purpose. The ship, Gwent, is found to be sentient, the attempt of a vain alien genius to live forever. Powerful, unstable and craving companionship, Gwent intends for Koenig, Helena and Bergman to replace its ...
E19
Ring Around the Moon
1976-01-15
A technician falls under an alien influence, accessing classified information before mysteriously dying. Soon after, the Moon is stopped in space by the powerful rays of an alien spacecraft. The aliens' only interest in Alpha is the data held in its computers, information they now plan to obtain thr...
E20
Missing Link
1976-01-22
John Koenig finds himself trapped on the planet Zenno, in the home of an alien scientist and his daughter. Advanced two million years beyond Earthmen, the aliens consider Koenig their missing link. Faced with the threat of being treated like an experimental animal for the rest of his life, Koenig us...

🎭 Cast of Space: 1999 Season 1

Martin Landau
Martin Landau
John Koenig
Barbara Bain
Barbara Bain
Helena Russell
Barry Morse
Barry Morse
Victor Bergman
Nick Tate
Nick Tate
Alan Carter
Prentis Hancock
Prentis Hancock
Paul Morrow
Zienia Merton
Zienia Merton
Sandra Benes
Clifton Jones
Clifton Jones
David Kano
Anton Phillips
Anton Phillips
Dr. Mathias

📋 All Seasons of Space: 1999

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