Storyline

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

First Aired

1965-09-15
Last Aired

1968-03-06
Creator

Irwin Allen
Genre

Sci-Fi & Fantasy, Comedy
Seasons

3
Episodes

83
Status

Ended
Language

English
Network

CBS

Keywords:

spacecraft future space alien planet anxious

Stream and watch Lost in Space

Season 1

Season 2

Season 3

1. The Reluctant Stowaway

In the year 1997 the Robinson family take off to colonize Alpha Centauri. A spy from a foreign country...More

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.Less

51mins 1965-09-15

2. The Derelict

The Jupiter 2 is pulled into a giant alien spaceship where there are advanced bubble-like creatures. W...More

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.Less

51mins 1965-09-22

3. Island in the Sky

Professor Robinson attempts to explore a planet that the Robinson's are planning to land on. His para...More

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.Less

51mins 1965-09-29

4. There Were Giants in the Earth

John discovers that the planet they are on will travel further from the sun.In an attempt to survive t...More

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.Less

51mins 1965-10-06

5. The Hungry Sea

Professor Robinson discovers that the planets orbit will bring immense heat on the spaceship. With tha...More

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.Less

51mins 1965-10-13

6. Welcome Stranger

Jimmy Hapgood lands on the planet and the Robinsons befriend him. After helping him fix his spaceship...More

Jimmy 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.Less

51mins 1965-10-20

7. My Friend, Mr. Nobody

Penny "imagines" a new companion, which is a disembodied life force living below the surface. Dr. Smi...More

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.Less

51mins 1965-10-27

8. Invaders from the Fifth Dimension

Luminous aliens capture Dr. Smith and plan to replace their burnt out computer with his brain. Smith ...More

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.Less

51mins 1965-11-03

9. The Oasis

Dr. Smith eats some alien fruit which transforms him into a giant. Convinced it was the Robinsons try...More

Dr. 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.Less

51mins 1965-11-10

10. The Sky Is Falling

The Robinsons can not understand the language of a visiting family also on the planet. The aliens are ...More

The 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.Less

51mins 1965-11-17

11. Wish Upon a Star

The Robinson family banish Dr. Smith from the Jupiter 2. He takes refuge in an abandoned spaceship wh...More

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.Less

51mins 1965-11-24

12. The Raft

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

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

51mins 1965-12-01

13. One of Our Dogs Is Missing

The women of Lost in Space are featured in their very own episode while the boys are out installing co...More

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.Less

51mins 1965-12-08

14. Attack of the Monster Plants

Plants grow to huge proportions and can duplicate any item placed in them - but those items are made o...More

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.Less

51mins 1965-12-15

15. Return from Outer Space

Lost in Space's only Christmas program. Will uses an alien transporter to send himself back to earth....More

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.Less

51mins 1965-12-29

16. The Keeper (1)

The Keeper, played by Michael Rennie, is a zoo keeper. He wants to take the children and add them to ...More

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.Less

51mins 1966-01-12

17. The Keeper (2)

The second part of the zookeeper played by Michael Rennie. Rennie turns in a memorable performance as...More

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.Less

51mins 1966-01-19

18. The Sky Pirate

The Robinsons meet a space traveler who turns out to be an Earth man, Alonzo P. Tucker, who was abduct...More

The 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.Less

51mins 1966-01-26

19. Ghost in Space

Dr. Smith holds a seance to contact his Uncle Thaddeus. Instead a spirit creature is contacted and cr...More

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.Less

51mins 1966-02-02

20. War of the Robots

Will and Dr. Smith stumble upon another robot. More capable than their own robot the alien robot work...More

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.Less

51mins 1966-02-09

21. The Magic Mirror

Penny and Judy stumble upon a mirror. They discover someone is on the otherside. Before they know it...More

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.Less

51mins 1966-02-16

22. The Challenge

An alien boy is sent to Priplanis to validate his prince status. Will is drawn into a battle to the d...More

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.Less

51mins 1966-03-02

23. The Space Trader

After the entire Robinson food supply is wiped out in a freak storm a trader arrives to trade food for...More

After 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.Less

51mins 1966-03-09

24. His Majesty Smith

Dr. Smith is conscripted as the leader of a people from another world. Little does he know that the l...More

Dr. 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.Less

51mins 1966-03-16

25. The Space Croppers

The Beverly Hillbillies move to Priplanis. One of the aliens turns into a werewolf at night. The lea...More

The 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.Less

51mins 1966-03-30

26. All That Glitters

In this retelling of "The Midis Touch", Dr. Smith gains the power to turn anything into platinum. Pen...More

In 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.Less

51mins 1966-04-06

27. The Lost Civilization

The Robinson men discover an underground civilization while exploring the planet. Will wakes a sleepi...More

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.Less

51mins 1966-04-13

28. A Change of Space

The Intergalactic Delivery Service comes to Priplanus. Once again Dr. Smith seeks transportation and ...More

The 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.Less

51mins 1966-04-20

29. Follow the Leader

John Robinson is possessed by an alien spirit. The alien forces the family to prepare to return to the...More

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.Less