The Best Episodes of Lost in Space

Episode Rankings

1. #1 Fan Favorite
   Click to reveal

   REVEAL THE WINNER
   

   7.0/10(3 votes)

   #1 - The Reluctant Stowaway

   S1:E19/15/1965

   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.

   Director:Anton Leader

   Writer:Shimon Wincelberg

   Be the first to start the conversation for this episode

   Director:Anton Leader

   Writer:Shimon Wincelberg
2. 

   7.0/10(3 votes)

   #2 - There Were Giants in the Earth

   S1:E410/6/1965

   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.

   Director:Leo Penn

   Writer:Unknown

   Be the first to start the conversation for this episode

   Director:Leo Penn

   Writer:Unknown
3. 

   7.0/10(3 votes)

   #3 - Invaders from the Fifth Dimension

   S1:E811/3/1965

   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.

   Director:Leonard Horn

   Writer:Shimon Wincelberg

   Be the first to start the conversation for this episode

   Director:Leonard Horn

   Writer:Shimon Wincelberg
4. 

   7.0/10(3 votes)

   #4 - Follow the Leader

   S1:E294/27/1966

   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.

   Director:Don Richardson

   Writer:Barney Slater

   Be the first to start the conversation for this episode

   Director:Don Richardson

   Writer:Barney Slater
5. 

   7.0/10(2 votes)

   #5 - The Golden Man

   S2:E1512/28/1966

   While the rest of the men are away, Dr Smith and the Robinson women are affronted by a mysetrious man in gold, who claims to be at war with a race of green aliens. Penny meets the green alien, and takes a liking to him, and immediately hates the Golden Man. When they are faced with the reality that their planet may be blown up due to war, Penny risks her life to save her green friend, while Dr Smith makes other startling revelations, and renders the family helpless.

   Director:Don Richardson

   Writer:Barney Slater

   Be the first to start the conversation for this episode

   Director:Don Richardson

   Writer:Barney Slater
6. 

   7.0/10(1 votes)

   #6 - Visit to a Hostile Planet

   S3:E29/13/1967

   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.

   Director:Sobey Martin

   Writer:Peter Packer

   Be the first to start the conversation for this episode

   Director:Sobey Martin

   Writer:Peter Packer
TRENDING NOW
The 20 WORST Episodes of Lost in Space
READ
7. 

   7.0/10(1 votes)

   #7 - The Flaming Planet

   S3:E222/21/1968

   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.

   Director:Don Richardson

   Writer:Barney Slater

   Be the first to start the conversation for this episode

   Director:Don Richardson

   Writer:Barney Slater
8. 

   7.0/10(1 votes)

   #8 - The Great Vegetable Rebellion

   S3:E232/28/1968

   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.

   Director:Don Richardson

   Writer:Peter Packer

   Be the first to start the conversation for this episode

   Director:Don Richardson

   Writer:Peter Packer
9. 

   6.8/10(4 votes)

   #9 - The Prisoners of Space

   S2:E610/19/1966

   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?

   Director:Nathan Juran

   Writer:Barney Slater

   Be the first to start the conversation for this episode

   Director:Nathan Juran

   Writer:Barney Slater
10. 

    6.7/10(3 votes)

    #10 - The Derelict

    S1:E29/22/1965

    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.

    Director:Alexander Singer

    Writer:Unknown

    Be the first to start the conversation for this episode

    Director:Alexander Singer

    Writer:Unknown
11. 

    6.7/10(3 votes)

    #11 - Island in the Sky

    S1:E39/29/1965

    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.

    Director:Anton Leader

    Writer:Unknown

    Be the first to start the conversation for this episode

    Director:Anton Leader

    Writer:Unknown
12. 

    6.7/10(3 votes)

    #12 - The Raft

    S1:E1212/1/1965

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

    Director:Sobey Martin

    Writer:Peter Packer

    Be the first to start the conversation for this episode

    Director:Sobey Martin

    Writer:Peter Packer
13. 

    6.7/10(3 votes)

    #13 - The Keeper (1)

    S1:E161/12/1966

    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.

    Directors:Harry Harris, Sobey Martin

    Writer:Barney Slater

    Be the first to start the conversation for this episode

    Directors:Harry Harris, Sobey Martin

    Writer:Barney Slater
14. 

    6.7/10(3 votes)

    #14 - The Keeper (2)

    S1:E171/19/1966

    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.

    Director:Harry Harris

    Writer:Barney Slater

    Be the first to start the conversation for this episode

    Director:Harry Harris

    Writer:Barney Slater
15. 

    6.7/10(3 votes)

    #15 - War of the Robots

    S1:E202/9/1966

    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.

    Director:Sobey Martin

    Writer:Barney Slater

    Be the first to start the conversation for this episode

    Director:Sobey Martin

    Writer:Barney Slater
16. 

    6.3/10(3 votes)

    #16 - My Friend, Mr. Nobody

    S1:E710/27/1965

    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.

    Director:Paul Stanley

    Writer:Jackson Gillis

    Be the first to start the conversation for this episode

    Director:Paul Stanley

    Writer:Jackson Gillis
17. 

    6.3/10(3 votes)

    #17 - Wish Upon a Star

    S1:E1111/24/1965

    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.

    Director:Sutton Roley

    Writer:Barney Slater

    Be the first to start the conversation for this episode

    Director:Sutton Roley

    Writer:Barney Slater
18. 

    6.3/10(3 votes)

    #18 - Return from Outer Space

    S1:E1512/29/1965

    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.

    Director:Nathan Juran

    Writer:Peter Packer

    Be the first to start the conversation for this episode

    Director:Nathan Juran

    Writer:Peter Packer
19. 

    6.3/10(3 votes)

    #19 - The Magic Mirror

    S1:E212/16/1966

    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.

    Director:Nathan Juran

    Writer:Jackson Gillis

    Be the first to start the conversation for this episode

    Director:Nathan Juran

    Writer:Jackson Gillis
20. 

    6.0/10(3 votes)

    #20 - The Hungry Sea

    S1:E510/13/1965

    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.

    Director:Sobey Martin

    Writer:Unknown

    Be the first to start the conversation for this episode

    Director:Sobey Martin

    Writer:Unknown
21. 

    6.0/10(3 votes)

    #21 - One of Our Dogs Is Missing

    S1:E1312/8/1965

    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.

    Director:Sutton Roley

    Writer:William Welch

    Be the first to start the conversation for this episode

    Director:Sutton Roley

    Writer:William Welch
22. 

    6.0/10(4 votes)

    #22 - Ghost in Space

    S1:E192/2/1966

    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.

    Director:Don Richardson

    Writer:Peter Packer

    Be the first to start the conversation for this episode

    Director:Don Richardson

    Writer:Peter Packer
23. 

    6.0/10(3 votes)

    #23 - The Challenge

    S1:E223/2/1966

    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.

    Director:Don Richardson

    Writer:Barney Slater

    Be the first to start the conversation for this episode

    Director:Don Richardson

    Writer:Barney Slater
24. 

    6.0/10(4 votes)

    #24 - The Lost Civilization

    S1:E274/13/1966

    The Robinson men discover an underground civilization while exploring the planet. Will wakes a sleeping princess who wants him to remain and rule with her.

    Director:Don Richardson

    Writer:William Welch

    Be the first to start the conversation for this episode

    Director:Don Richardson

    Writer:William Welch
25. 

    6.0/10(3 votes)

    #25 - Blast Off into Space

    S2:E19/16/1966

    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.

    Director:Nathan Juran

    Writer:Peter Packer

    Be the first to start the conversation for this episode

    Director:Nathan Juran

    Writer:Peter Packer