Playback is currently unavailable for S1 E1 · The Reluctant Stowaway. Episode details remain available below.
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 an inept stowaway, Dr. Zachary Smith. The family's spaceship, Jupiter II, also carries a friendly robot who endures an endless stream of abuse from Dr. Smith, but is a trusted companion of young Will Robinson
- Created by:
- Irwin Allen
- Cast:
- Guy Williams, June Lockhart, Mark Goddard, Marta Kristen
- Language:
- English
- Country:
- United States of America
- Network:
- CBS
Episode guide
Seasons
Season 1
Episodes
E01
Episode 1
★ 7.0The Reluctant Stowaway
1965-09-15 · 51mIn 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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E02
Episode 2
★ 7.2The Derelict
1965-09-22 · 51mThe 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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E03
Episode 3
★ 6.7Island in the Sky
1965-09-29 · 51mProfessor 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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E04
Episode 4
★ 7.0There Were Giants in the Earth
1965-10-06 · 51mJohn 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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E05
Episode 5
★ 6.0The Hungry Sea
1965-10-13 · 51mProfessor 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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E06
Episode 6
★ 5.3Welcome Stranger
1965-10-20 · 51mJimmy Hapgood lands on the planet and the Robinsons befriend him. After helping him fix his spaceship the Robinsons try to convince him to take Will and Penny back to Earth with him. Dr. Smith tries to get aboard the ship instead and take their place.
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E07
Episode 7
★ 6.3My Friend, Mr. Nobody
1965-10-27 · 51mPenny "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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E08
Episode 8
★ 7.0Invaders from the Fifth Dimension
1965-11-03 · 51mLuminous 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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E09
Episode 9
★ 5.7The Oasis
1965-11-10 · 51mDr. Smith eats some alien fruit which transforms him into a giant. Convinced it was the Robinsons trying to kill him, he plots to take them out.
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E10
Episode 10
★ 5.3The Sky Is Falling
1965-11-17 · 51mThe Robinsons can not understand the language of a visiting family also on the planet. The aliens are called Taurons, and come to use the planet as a new colony. However Dr. Smith causes problems between the two camps when he panics and draws a gun on the new family. The Taurons end up not liking the planet and want to be alone, so they leave.
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E11
Episode 11
★ 6.3Wish Upon a Star
1965-11-24 · 51mThe 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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E12
Episode 12
★ 6.7The Raft
1965-12-01 · 51mActually, 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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E13
Episode 13
★ 6.0One of Our Dogs Is Missing
1965-12-08 · 51mThe 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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E14
Episode 14
★ 5.8Attack of the Monster Plants
1965-12-15 · 51mPlants 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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E15
Episode 15
★ 6.3Return from Outer Space
1965-12-29 · 51mLost 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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E16
Episode 16
★ 6.7The Keeper (1)
1966-01-12 · 51mThe 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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E17
Episode 17
★ 6.7The Keeper (2)
1966-01-19 · 51mThe 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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E18
Episode 18
★ 5.5The Sky Pirate
1966-01-26 · 51mThe Robinsons meet a space traveler who turns out to be an Earth man, Alonzo P. Tucker, who was abducted from Punxsutawney, Pennsylvania, by aliens, in 1876. Tucker befriends Will by telling tall tales about being a pirate, but it turns out that he is only an ordinary man being pursued by aliens because he has stolen a mind reading device from them. Tucker returns the mind reading device to his alien pursuers, saving the Robinsons in the process.
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E19
Episode 19
★ 6.0Ghost in Space
1966-02-02 · 51mDr. 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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E20
Episode 20
★ 6.7War of the Robots
1966-02-09 · 51mWill 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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E21
Episode 21
★ 6.3The Magic Mirror
1966-02-16 · 51mPenny 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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E22
Episode 22
★ 6.0The Challenge
1966-03-02 · 51mAn 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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E23
Episode 23
★ 5.3The Space Trader
1966-03-09 · 51mAfter the entire Robinson food supply is wiped out in a freak storm a trader arrives to trade food for equipment the Robinson's possess. Dr. Smith trades the robot for food and hoards the supplies for himself. Later, after the Robinson's discover his transaction he gets the robot back but in exchange for his own self. The Trader then wants to take Smith as a slave, to another planet.
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E24
Episode 24
★ 5.3His Majesty Smith
1966-03-16 · 51mDr. Smith is conscripted as the leader of a people from another world. Little does he know that the leaders of these people are routinely sacrificed and replaced with other expendible leaders. Smith is just one of a long line of sacrificed rulers.
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E25
Episode 25
★ 5.0The Space Croppers
1966-03-30 · 51mThe Beverly Hillbillies move to Priplanis. One of the aliens turns into a werewolf at night. The leader is a articulent female which Smith tries to court so he may have transportation back to earth. Don falls for the sexy alien daughter.
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E26
Episode 26
★ 5.3All That Glitters
1966-04-06 · 51mIn this retelling of "The Midis Touch", Dr. Smith gains the power to turn anything into platinum. Penny is given a gift by a thief on the run, who tells her to protect it for him. She and Dr. Smith discover that it leads them to a ring which, when worn, allows the person to turn anything to platinum, which Dr. Smith does and enjoys. However, when it turns even his food to platinum, he is unable to remove the ring, which is now a solid bar. He leaves the camp as he fears turning everything into platinum, and he will eventually starve to death. A galactic lawman is on the trail, looking for the stolen device to use for his own nefarious purposes.
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E27
Episode 27
★ 6.0The Lost Civilization
1966-04-13 · 51mThe Robinson men discover an underground civilization while exploring the planet. Will wakes a sleeping princess who wants him to remain and rule with her.
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E28
Episode 28
★ 5.5A Change of Space
1966-04-20 · 51mThe Intergalactic Delivery Service comes to Priplanus. Once again Dr. Smith seeks transportation and has Will "test drive" the spaceship. Will returns much smarter than when he left. Smith realizing the same could happen to him, the increase of intellect, boards the spaceship. His trip, however, ends in his rapid aging and subsequent impending death. To make matters worse, the owner of the spaceship has returned to take the vehicle back, stranding Will and Dr. Smith in their altered state.
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E29
Episode 29
★ 7.0Follow the Leader
1966-04-27 · 51mJohn 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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Guy Williams
Dr. John Robinson
June Lockhart
Dr. Maureen Robinson
Mark Goddard
Major Don West
Marta Kristen
Judy Robinson
Angela Cartwright
Penny Robinson
Bill Mumy
Will Robinson
Jonathan Harris
Dr. Zachary Smith
Dick Tufeld
Robot B-9
Bob May
Robot B-9