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The Best Episodes of Lost in Space

Every episode of Lost in Space ranked from best to worst. Let's dive into the Best Episodes of Lost in Space!

The Best Episodes of Lost in Space

The space family Robinson is sent on a five-year mission to find a new planet to colonise. The voyage is sabotaged time and again by...

Seasons3

  1. Background image for The Reluctant Stowaway
    7.0/10(3 votes)

    #1 - The Reluctant Stowaway

    S1:E1

    In the year 1997 the Robinson family take off to colonize Alpha Centauri. A spy from a foreign country AKA Dr. Smith becomes trapped aboard trying to sabotage the project. The ship is whisked off course and into a meteor storm due to Dr. Smith's extra weight upsetting the navigational computers. Smith desperately tries to save himself by reviving the crew. The result: the Robinson family becomes lost in space.

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  2. Background image for There Were Giants in the Earth
    7.0/10(3 votes)

    #2 - There Were Giants in the Earth

    S1:E4

    John discovers that the planet they are on will travel further from the sun.In an attempt to survive the Robinsons pack up and head south. Dr Smith stays at the Jupiter 2 site while the Robinson family encounter a terrifying cyclops and an ancient deserted city.

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    Director:Leo Penn
    Writer:Unknown
  3. Background image for Invaders from the Fifth Dimension
    7.0/10(3 votes)

    #3 - Invaders from the Fifth Dimension

    S1:E8

    Luminous aliens capture Dr. Smith and plan to replace their burnt out computer with his brain. Smith bargains with them and they attempt to use Will's brain instead.

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  4. Background image for Follow the Leader
    7.0/10(3 votes)

    #4 - Follow the Leader

    S1:E29

    John Robinson is possessed by an alien spirit. The alien forces the family to prepare to return to the spirit's home world, even if it requires he sacrifice Will to keep his secret from the rest of the family.

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  5. Background image for Visit to a Hostile Planet
    7.0/10(1 votes)

    #5 - Visit to a Hostile Planet

    S3:E2

    The Jupiter 2 and all aboard are caught in a space 'time-warp'! After everything seems to return to normal, they're shocked to find Earth within their reach and decide to return home. Though they're perplexed that they are unable to contact 'Alpha-Control', they decide to land in the 'good ole USA' ....only to find it's 1947! As usual, Dr. Smith causes issues & even considers staying behind when the Robinsons and West announce plans to leave.

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    Director:Sobey Martin
  6. Background image for The Flaming Planet
    7.0/10(1 votes)

    #6 - The Flaming Planet

    S3:E22

    Dr. Smith disposes of a plant that has grown out of control, but once outside the plant attaches itself to the Jupiter 2. The plant apparently believe that Dr. Smith is its mother, meanwhile the ship is attached by a brave space warrior.

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    The 20 WORST Episodes of Lost in Space

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  8. Background image for The Great Vegetable Rebellion
    7.0/10(1 votes)

    #7 - The Great Vegetable Rebellion

    S3:E23

    Doctor Smith uses the Space Pod to land on a planet that the Jupiter II is passing by. It turns out that the planet has evolved in such a way that plants are the highest form of life, and some of them are quite intelligent. One of these plants, a large carrot, captures Smith and tries to change him into a plant. The Jupiter II lands and the Robinsons and West come to Smith's rescue, only to be captured themselves. Eventually they thwart the plant creature and make their escape.

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  9. Background image for The Derelict
    6.7/10(3 votes)

    #8 - The Derelict

    S1:E2

    The Jupiter 2 is pulled into a giant alien spaceship where there are advanced bubble-like creatures. While John and Don look for maps and equipment Dr Smith and Will look for trouble.

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    Writer:Unknown
  10. Background image for Island in the Sky
    6.7/10(3 votes)

    #9 - Island in the Sky

    S1:E3

    Professor Robinson attempts to explore a planet that the Robinson's are planning to land on. His para-jet propulsion system fails due to sabotage by Dr. Smith. Major West "lands" the Jupiter II, in spite of the fact that Dr. Smith has also sabotaged the propulsion system of the Jupiter II, and the family and Major West rescue Professor Robinson.

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    Director:Anton Leader
    Writer:Unknown
  11. Background image for The Raft
    6.7/10(3 votes)

    #10 - The Raft

    S1:E12

    Actually, Will and Dr. Smith went into an elongated orbit and landed right back on the planet, not too far from the Jupiter II.

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    Director:Sobey Martin
  12. Background image for The Keeper (1)
    6.7/10(3 votes)

    #11 - The Keeper (1)

    S1:E16

    The Keeper, played by Michael Rennie, is a zoo keeper. He wants to take the children and add them to his collection. This episode is the only two-parter from the series.

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  13. Background image for The Keeper (2)
    6.7/10(3 votes)

    #12 - The Keeper (2)

    S1:E17

    The second part of the zookeeper played by Michael Rennie. Rennie turns in a memorable performance as The Keeper. His understated performance keeps dramatic tension where none would probably exist with a lessor actor.

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  14. Background image for War of the Robots
    6.7/10(3 votes)

    #13 - War of the Robots

    S1:E20

    Will and Dr. Smith stumble upon another robot. More capable than their own robot the alien robot works to gain the confidence of the Robinsons. At a critical point he plans to transport them to his home planet as slaves.

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  15. Background image for My Friend, Mr. Nobody
    6.3/10(3 votes)

    #14 - My Friend, Mr. Nobody

    S1:E7

    Penny "imagines" a new companion, which is a disembodied life force living below the surface. Dr. Smith accidentally injures Penny, leading to the creature taking his anger out on the entire planet.

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  16. Background image for Wish Upon a Star
    6.3/10(3 votes)

    #15 - Wish Upon a Star

    S1:E11

    The Robinson family banish Dr. Smith from the Jupiter 2. He takes refuge in an abandoned spaceship where he finds a machine that can materialize anything. In an attempt to get back on the Robinsons good side he gives them the machine which plays on the family's greed.

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  17. Background image for Return from Outer Space
    6.3/10(3 votes)

    #16 - Return from Outer Space

    S1:E15

    Lost in Space's only Christmas program. Will uses an alien transporter to send himself back to earth. However, many people believe the Robinson family to be dead after hearing the ship went off course. Nobody on Earth believes him, and they lock him up with the intention of sending him to a boys' home. Will escapes the family home he's in, and wanders around these clueless bunch of townspeople, but finds carbon tetrachoride — needed for the food processors on the Jupiter. Eventually he convinces another boy, Davey, to let him out, and let him return to the planet he came from. He returns to Priplanus with this bottle. Of course no one believes his adventures until he produces the bottle, plainly labeled as coming from Earth.

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    Director:Nathan Juran
  18. Background image for The Magic Mirror
    6.3/10(3 votes)

    #17 - The Magic Mirror

    S1:E21

    Penny and Judy stumble upon a mirror. They discover someone is on the otherside. Before they know it they are transported to the mirror universe which is occupied by only one person, a boy who is lonesome for companionship.

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  19. Background image for The Prisoners of Space
    6.3/10(3 votes)

    #18 - The Prisoners of Space

    S2:E6

    The Robinsons and Major West are imprisoned in their camp, after being indited to appear before the a trial in court space crimes. As the trial begins, Dr Smith's name begin's to appear and it is not long before it is realised that all of the Robinson's crimes are due to Dr Smith, and he is indited to appear before the court. Will he be found guilty?

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  20. Background image for The Hungry Sea
    6.0/10(3 votes)

    #19 - The Hungry Sea

    S1:E5

    Professor Robinson discovers that the planets orbit will bring immense heat on the spaceship. With that knowledge the Robinson's take off in the chariot and head south. However back at the Jupiter two, Dr Smith who stayed behind because he believed them to be lying, realises that the orbit is strange, bringing immense cold followed by extreme heat. He sends the Robot to tell them, and they then attempt to travel back to the Jupiter 2. However in their way is a huge in-land sea which previously had been frozen solid. The immense heat and cold make the vegetation charred. They survive the heat and return to the Jupiter Two where they are most safe.

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    Director:Sobey Martin
    Writer:Unknown
  21. Background image for One of Our Dogs Is Missing
    6.0/10(3 votes)

    #20 - One of Our Dogs Is Missing

    S1:E13

    The women of Lost in Space are featured in their very own episode while the boys are out installing communications equipment. Smith is left in charge (boy is that a mistake) and he "cleans" their weapons, but cannot remember how to rebuild the weapons. This leaves the J2 crew defenseless. A creepy creature stalks the Robinson women however they think a small dog is to blame for raids on food and other mischief.

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  22. Background image for Attack of the Monster Plants
    6.0/10(3 votes)

    #21 - Attack of the Monster Plants

    S1:E14

    Plants grow to huge proportions and can duplicate any item placed in them - but those items are made of plant material and are useless. John Robinson must use the biggest batch of plant killer he's ever mixed up to stop these things from engulfing the spaceship.

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  23. Background image for Ghost in Space
    6.0/10(3 votes)

    #22 - Ghost in Space

    S1:E19

    Dr. Smith holds a seance to contact his Uncle Thaddeus. Instead a spirit creature is contacted and creates havoc for the Robinsons. It is later discovered that the ""spirit creature"" is a physical creature, rendered invisible by the properties of the ""ionized gas"" in the bog from which it came.

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  24. Background image for The Challenge
    6.0/10(3 votes)

    #23 - The Challenge

    S1:E22

    An alien boy is sent to Priplanis to validate his prince status. Will is drawn into a battle to the death unbeknowest to his father. Once his real intentions are known John substitutes himself in the challenge and the Alien Ruler substitutes himself for his son.

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  25. Background image for Blast Off into Space
    6.0/10(3 votes)

    #24 - Blast Off into Space

    S2:E1

    Dr Smith and Will befriend an old miner named Nerim. After a series of earthquakes indicates that the planet is breaking up, Dr Smith tries to convince them that it is merely the effects of mining, and no harm will come to the planet. John informs him that he is wrong and that the Robinson family will be departing within the day. It is a race against time to escape the crumbling planet.

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    Director:Nathan Juran
  26. Background image for The Android Machine
    6.0/10(2 votes)

    #25 - The Android Machine

    S2:E7

    Will and Dr Smith discover an old, abandoned Android Machine. When Dr Smith plays with the buttons on the machine, he accidently orders an Android. He thinks he has it for free, and uses her as his personal slave, assuming she has no human emotions. What will he do when the owner, Zumdish, and his guard turn up...demanding payment?

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Best Episodes Summary

"The Reluctant Stowaway" is the best rated episode of "Lost in Space". It scored 7/10 based on 3 votes. Directed by Anton Leader and written by Shimon Wincelberg, it aired on 9/15/1965. This episode scored 0.0 points higher than the second highest rated, "There Were Giants in the Earth".