Lost in Space

CBS (ended 1968)




Episode Guide

    • The Hungry Sea
      Season 1 - Episode 5

      Professor Robinson discovers that the planet's orbit will bring immense heat on the spaceship. With that knowledge, the Robinsons take off in the Chariot and head south. Dr. Smith stays behind because he believes them to be lying, but soon realizes the orbit is odd. There are periods of extreme cold followed by equally extreme heat. The Robot is sent to tell the Robinsons and they try to return to the Jupiter 2. They must brave various geographical areas and the strange weather before returning to the Jupiter 2 where they are most safe.

    • Visit to a Hostile Planet
      Season 3 - Episode 2
      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, but discover 1947 USA.moreless
    • The Anti-Matter Man
      Season 3 - Episode 15
      Professor Robinson is caught in a matter transfer emission ray, and subsequently ends up in another dimension where he is confronted by a version of himself and Don. However this realm is the opposite of his own dimension, the anti-matter world, where everything in reality is twisted. The evil John returns to the family and attempts to take over the Robinsons and take over John's life.moreless
    • Island in the Sky
      Season 1 - Episode 3

      Professor Robinson attempts to explore a planet that the family is planning to land on. Dr. Smith has sabotaged his para-jet propulsion system, causing it to fail. Smith has also sabotaged the propulsion system of the Jupiter 2. Major West crash lands the ship on the planet so that he and the family can rescue the Professor.

    • Wish Upon A Star
      Season 1 - Episode 11

      The Robinson family banishes 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 into the Robinson's good standing, he gives them the machine, which plays on the family's greed.

    • Follow The Leader
      Season 1 - Episode 29

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

    • The Golden Man
      Season 2 - Episode 15
      While the rest of the men are away, Dr. Smith and the Robinson women are confronted by a mysterious 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 starts to hate the Golden Man.moreless
    • The Magic Mirror
      Season 1 - Episode 21

      Penny and Judy stumble upon a mirror on the planet. But it's not an ordinary mirror as it seems that there is someone on the "other side". Before they know it they are transported to the mirror universe that is occupied by only one person, a boy who is lonesome for companionship.

    • There Were Giants in the Earth
      Season 1 - Episode 4

      Professor Robinson 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.

    • The Keeper (pt 1)
      Season 1 - Episode 16

      A zoo keeper who travels the universe wants to take Will and Penny and add them to his vast collection of celestial animals.

    • My Friend, Mr. Nobody
      Season 1 - Episode 7
      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.
    • The Prisoners Of Space
      Season 2 - Episode 6

      The Robinson family and Major West are imprisoned in their camp after being indicted to appear before a court for space crimes. As the trial begins, Dr. Smith's name begins to appear and it is not long before everyone realizes that all of the Robinson's "crimes" should be attributed to Smith, and he is indicted to appear before the court.

    • The Keeper (pt 2)
      Season 1 - Episode 17

      The Robinsons are given the option to turn Penny and Will over to The Keeper or face certain death.

    • Space Creature
      Season 3 - Episode 10
      A strange blue fog seems to be engulfing the Jupiter 2 periodically.
    • Return From Outer Space
      Season 1 - Episode 15

      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.

    • The Reluctant Stowaway
      Season 1 - Episode 1
      As the Robinson family prepares to leave Earth to colonize Alpha Centauri, a spy from a foreign country, Zachary Smith, becomes trapped aboard while trying to sabotage the space vehicle. After liftoff, the ship is whisked off course and into a meteor storm due to Dr. Smith's extra weight upsetting the navigational computers. In and attempt to save himself, Smith revives the crew early, resulting in the Robinson family with Smith becoming Lost In Space.moreless
    • Time Merchant
      Season 3 - Episode 18

      Will Robinson meets a man in a cave who may hold the solution to helping them get to Alpha Centauri.

    • All That Glitters
      Season 1 - Episode 26

      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. Unfortunately, the ring also turns their food into the metal too and food is always in short supply.

    • One Of Our Dogs Is Missing
      Season 1 - Episode 13

      While the men are away, an alien creature stalks the Robinson women from the shadows. The girls just think it's a small dog that is to blame for raids on food and other mischief.

    • Condemned of Space
      Season 3 - Episode 1
      The Robinsons have to leave the planet they are on. Once in space, the robot is swept overboard and has to be rescued. While rescuing the robot, the Robinsons find a prison ship filled with cryogenically preserved prisoners.
    • Invaders From The Fifth Dimension
      Season 1 - Episode 8

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

    • War Of The Robots
      Season 1 - Episode 20

      Will Robinson and Dr. Smith stumble upon another robot on the planet that is even more capable than their own. The alien robot sets out to gain the confidence of the Robinson family because, at a future critical point, he plans to transport them to his home planet as slaves.

    • The Derelict
      Season 1 - Episode 2

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

    • The Haunted Lighthouse
      Season 3 - Episode 7

      Before leaving their planet, the Robinsons meet a boy alien called J-5. They take him with them to return him to his home planet. They meet a strange ship, which turns out to be an Earth "lighthouse" for lost ships. Thinking this ship will help them with extra fuel and star charts they celebrate. However, when J-5 learns that they don't have enough fuel to take him home, he angrily sets about to destroy them all with a creation of his imagination.

    • The Android Machine
      Season 2 - Episode 7
      Will and Dr. Smith discover an old abandoned android machine. When Dr. Smith plays with the buttons on the machine, he accidentally orders an android. He thinks he has it for free, and uses her as his personal slave, assuming she has no emotions.
    • The Sky Is Falling
      Season 1 - Episode 10

      A visiting family of aliens, called Taurons, have decided to use the Robinsons' planet as a new colony. Although the Robinsons cannot understand the language of a visiting family they welcome them to live in peace and harmony. However, as usual, Dr. Smith causes problems when he panics and draws a gun on the alien family.

    • Flight into the Future
      Season 3 - Episode 8
      Dr. Smith, Will, and the Robot are accidentally launched in the Jupiter's space pod. They land on a planet that is controlled by an alien machine that creates illusions to confuse visitors and drive them away. The Jupiter 2 lands on the planet and rescues them, while the Robot destroys the alien machine.moreless
    • Target Earth
      Season 3 - Episode 16

      The space pod lands on a planet that is inhabited by creatures who all look alike but aspire to be different. They capture the Robinsons and make duplicates of them with the objective of using the duplicates to fly theJupiter 2 back to Earth. Only Will is not duplicated and attempts to thwart their plan.

    • Attack Of The Monster Plants
      Season 1 - Episode 14

      The Robinson family discover a large alien plant that can duplicate whatever it is fed. Dr. Smith steals the ship's remaining fuel with the intention of feeding it to the alien plant, hoping to double the fuel supply.

    • The Dream Monster
      Season 2 - Episode 14
      During a heat wave, Penny comes across a giant, golden man, and his owner. She is told that the creature is called Raddion, a creation which only needs human emotions to be complete. When Dr. Smith is removed from the camp, he is taken by two midgets who work with Raddion, and in another attempt to be returned to Earth, agrees to steal the emotions from the Robinsons.moreless
    • In the year 1997, the Robinson family is cryogenically suspended before their launch into space in the space-saucer Gemini 12 on man's first mission to colonize a planet orbiting Alpha Centauri.

      Soon after leaving Earth, a meteor swarm sends the Gemini 12 spiraling out of control, ending in a crash landing on an unknown planet. The Robinsons survive the crash and set up camp, but their preparations to head south to avoid the sudden onset of the cold season are hampered by One-Eye, the giant cyclops, trapping John and Don in a cave.

      After Will saves the men, and Penny is recovered after a turtle ride, the travellers journey to the tropics encountering along the way, the One-Eye again, fierce electrical storms, an underground city and a stormy sea crossing where they become caught in a whirlpool.

    • Trip Through the Robot
      Season 2 - Episode 26

      The Robinsons' power source drops to critical levels, leaving them unable to recharge the Robot. Rather than endanger them, the Robot leaves the group. The crew looks for it and Will and Dr. Smith discover that the Robot has grown to be bigger than a house after exposure to strange gasses.

    • The Raft
      Season 1 - Episode 12
      The Robinsons manage to construct a small space ship that they plan to use to return to Earth.
    • A Change Of Space
      Season 1 - Episode 28

      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 increase of intellect could happen to him, boards the spaceship. His trip, however, ends in his rapid aging and subsequent impending death.

    • Wreck of the Robot
      Season 2 - Episode 13
      While playing a outdoor match, Will and Smith's ball explodes. As the smoke clears they find that the ball has turned to gold. Later, when the ball rolls into a cave, aliens in the cave demand that the ball should be traded for the robot.
    • His Majesty Smith
      Season 1 - Episode 24
      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 expendable leaders. Smith is just one of a long line of sacrificed rulers.
    • The Challenge
      Season 1 - Episode 22

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

    • Hunter's Moon
      Season 3 - Episode 4
      Professor Robinson and the Robot land the Space Pod on a planet, and Professor Robinson kills an attacking monster, only to discover that he has interfered with a contest where a highly intelligent alien who aspires to rule his home planet is being judged on how well he hunts. The alien forces Professor Robinson to take the role of one of the hunted animals in the contest, allowing the Professor one weapon.moreless
    • Revolt of the Androids
      Season 2 - Episode 24
      Penny meets up with Verda, the android Dr. Smith ordered, who is on the run from a super android, IDAK. She is now much more human-like. IDAK however is faulty and is incapable of crushing anything or anyone. Another OMEGA-IDAK is released, and vows to "crush, kill, destroy".
    • Fugitives In Space
      Season 3 - Episode 20

      Don West and Dr. Smith are installing some equipment when Dr. Smith comes across an alien prison escapee. The prisoner alien makes Dr. Smith change jackets and then runs away. When the prison guards catch up with Smith and West, they arrest them for aiding the escape of a prisoner.

    • The Space Trader
      Season 1 - Episode 23
      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.moreless
    • The Galaxy Gift
      Season 2 - Episode 30

      Dr. Smith and Penny are entrusted with a valuable amulet after saving an alien's life. However, trouble soon arrives in the form of space thugs, and they want the amulet.

    • Wild Adventure
      Season 2 - Episode 2

      After leaving their planet, Dr. Smith manages to plot a course back to Earth.

    • The Flaming Planet
      Season 3 - Episode 22

      Dr. Smith disposes of a plant that has grown out of control. However, the plant manages to attach itself to the Jupiter 2, apparently believing that Smith is its mother. Meanwhile, the ship comes under attack by a space warrior.

    • Blast Off into Space
      Season 2 - Episode 1
      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.moreless
    • The Space Primevals
      Season 3 - Episode 5
      The Robot is pitted against a supercomputer in an effort to save Don and Dr. Smith.
    • Junkyard In Space
      Season 3 - Episode 24

      The Jupiter 2 lands on a planet which apparently serves space as a junkyard. The Robinson's food supply is dwindling, so Dr. Smith tries to sell the robot and the ship in order to get food.

    • A Visit to Hades
      Season 2 - Episode 12
      Dr. Smith, Will and the Robot discover an old harp under a carved out rock. They discover that in playing the right tune, it unlocks a passage to another world. In travelling here, Dr. Smith meets an alien who believes to be the devil, and believes the place to be Hell. When he leaves, and the alien shows up on the planet, Dr. Smith is frightened. Judy befriends the alien, and is accidentally taken to the other world. It is up to Don and John to save her.moreless
    • The Phantom Family
      Season 2 - Episode 27
      Will returns to camp following a cosmic storm. John and Maureen are not there as they are at the weather relay station. When he gets there, the rest of the family are acting strange. He finds out they are androids, sent to learn how to cope like the Robinsons and teach the rest of their race when they return home. The real Robinsons, are kept in a tube, as they are not allowed to come in to contact with their double. Will must teach them to become like their counterparts.moreless
    • Ghost In Space
      Season 1 - Episode 19

      Dr. Smith holds a seance to contact his Uncle Thaddeus. Instead a "spirit" creature is contacted and creates havoc for the Robinsons.

    • The Deadly Games of Gamma 6
      Season 2 - Episode 8
      When a troop of Galactic Gladiators arrive on the planet, they challenge Professor Robinson to a duel, which will be aired all of the galaxy. John declines saying he isn't interested in physical combat. Dr. Smith takes up the offer when he makes a deal that if he wins, he will be returned to Earth. Unbeknownst to him, if he loses, which is a near-certainty, Earth will be destroyed.moreless
    • Space Destructors
      Season 3 - Episode 6
      Dr. Smith and the Robot are exploring a cave. Smith pushes several buttons on a conspicuous control panel. The buttons activate a cyborg creating device. It is up to Will to stop Dr. Smith.
    • The Sky Pirate
      Season 1 - Episode 18
      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.
    • The Oasis
      Season 1 - Episode 9

      Dr. Smith eats some alien fruit, which turns him into a giant. He becomes convinced that giving him the fruit was the Robinsons trying to kill him. So he plots to take them out.

    • The Ghost Planet
      Season 2 - Episode 3

      Due to Dr. Smith's actions, the crew of the Jupiter II has had to land their ship on a alien planet which is run by cyborgs. The crew must rescue their crippled robot and then try to break free from the captors, even though the cyborgs promise them power and luxury for the rest of their lifes.

    • A Day at the Zoo
      Season 3 - Episode 12
      A cave boy appears and attempts to lure Penny away, but she refuses, and is instead caught in a net. She is transported to an intergalactic zoo, were she will be put on show. Meanwhile, Dr. Smith tries to take over the zoo.
    • Welcome Stranger
      Season 1 - Episode 6

      Astronaut Jimmy Hapgood lands on the planet and the Robinsons befriend him. After Jimmy fixes his spaceship, the Robinsons try and convince him to take Will and Penny back to Earth with him. However, Dr. Smith tries to get aboard the ship to get back to Earth instead.

    • Space Beauty
      Season 3 - Episode 21

      The galactic showman, Farnum B, returns, this time as the producer of the Miss Galaxy Beauty Pageant. And he wants Judy to be in the contest, only she wants no part of it. Dr. Smith submits her anyway by forging her name to the contest roster.

    • The Astral Traveler
      Season 2 - Episode 29
      Dr. Smith and Will become trapped in a cave during a cosmic storm. Will is accidentally pulled through a cosmic time warp, and ends up on Earth, in Scottish castle. He meets a headless ghost called Hamish who was beheaded at the Castle. Hamish is trapped there due to the callous crimes he has committed. The rest of the family manage to get Will out, but Hamish follows him. They decide to re-create the time warp, and send Hamish home with him Dr. Smith, carrying star-charts and maps so that he may send a rescue mission to save the Robinsons.moreless
    • The Colonists
      Season 2 - Episode 25

      The Robinsons' communications system is knocked out, and they discover that the culprit is a female warrior, who is planing on making their planet a colony for her people.

    • Princess Of Space
      Season 3 - Episode 17

      A crew led by Captain Kraspo is searching for the missing Princess Alpha. They bring Will Robinson on board their ship, and he makes them think that Penny might be the Princess they are looking for.

    • Treasures of the Lost Planet
      Season 2 - Episode 23
      Alonzo P. Tucker returns, this time more in keeping with the pirate character he tried to create in his first appearance. This time Tucker is searching for Billy Bones' treasure, and is using the head of Billy Bones, which is kept in a box, to help him find it.
    • Space Circus
      Season 2 - Episode 5
      The Robinson family go through a food crisis when their plant purifier breaks down. Will and Dr. Smith discover a travelling show of circus people, and Will is later tricked in to agreeing to join. It's a race against time for the Robinsons to save will, and keep themselves alive.
    • The Mechanical Men
      Season 2 - Episode 28
      After Dr. Smith is turned away from camp yet again, he awakes from a nap to find he has been tied up by little mechanical men. The Robinson's camp is invaded by the mechanical men of INDUSTRO, who claim that they want a leader… their leader The Robinson's learn that the Robot is what they want, and that if he is not surrendered the mechanical men will attack.moreless
    • The Toymaker
      Season 2 - Episode 18

      Dr. Smith discovers another android machine in the middle of a dangerous fissure. When he tries to order something, he is trapped inside the machine. Later when Will tries to get him out, he too is sucked in. Zumdish arrives on the planet in order to destroy the faulty, forgotten machine. Meanwhile, Will and Dr. Smith discover the magical Toymaker's world, as they are mistaken for toys.

    • The Promised Planet
      Season 3 - Episode 19

      Rocketing through space, the Robot suddenly announces that the Jupiter 2 is approaching Alpha Centauri. Everyone is surprised, and the ship lands on a planet, where they are greeted by a group of people who appear to be teenagers from Earth. It turns out that they are aliens who live like Earth-style hippies, and they are incapable of growing old.

    • Kidnapped in Space
      Season 3 - Episode 3
      Dr. Smith answers a distress call from an alien space ship. He arrives there using the Space Pod, and discovers that the aliens want him to operate on (actually, repair), their leader.
    • The Lost Civilization
      Season 1 - Episode 27
      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.
    • Deadliest of the Species
      Season 3 - Episode 11
      The Robinsons encounter two aliens who are on a mission to seek and destroy an escaped robot prisoner, whom they believe to be hiding on the Jupiter 2. Meanwhile, the robot meets and falls in love with an evil female Robot. She tries to turn the robot bad, but ultimately is defeated by the robot and the Robinsons, but not before wreaking havoc over the planet.moreless
    • The Thief from Outer Space
      Season 2 - Episode 9
      A person know as "the thief from outer space" appears in a puff of smoke, Will agrees help help him rescue a princess who was lost more than 200 years ago by evil vizier.
    • The Space Croppers
      Season 1 - Episode 25
      Space farmers who grow deadly plants move to Priplanis.
    • Forbidden World
      Season 2 - Episode 4
      The Jupiter 2 is hit by a missile and crash lands on a fog-shrouded planet. The Robinsons discover that the planet is ruled over by a strange, but deadly alien.
    • The Cave of the Wizards
      Season 2 - Episode 22
      Dr. Smith hits his head on a rock and goes into the depths of a cave where he finds a mummy. Meanwhile, the family have to leave the planet at 8:00am, while also having to rescue Dr. Smith.
    • Collision of Planets
      Season 3 - Episode 9

      The Robinsons come across a group of space hippies who are trying to destroy the planet the Robinsons currently inhabit. It is up to the Robinsons and Dr. Smith to stop them or they will all be doomed.

    • The Girl From the Green Dimension
      Season 2 - Episode 16
      Athena, the girl from the green dimension who hypnotised Dr. Smith during their space flight, arrives on the planet. She is still in love with Dr. Smith, which he uses to bribe her to help him see the future. However, he promises to go back to the green dimension with her, and when Athena's previous suitor arrives and turns Will green, Dr. Smith must find a way to save himself and Will.moreless
    • The Great Vegetable Rebellion
      Season 3 - Episode 23

      Doctor Smith uses the space pod to land on a planet that the Jupiter 2 is passing by. It turns out that on this planet, 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.

    • Castles in Space
      Season 3 - Episode 14
      The Robinsons take in a Princess who is fleeing from a bounty hunter. However, when Will is captured by the bounty hunter, he asks to make a trade of Will for the Princess.
    • Rocket to Earth
      Season 2 - Episode 21
      The crew are outside playing ball when a magician called Zalto appears. Dr. Smith uses Zalto to conjure up a space ship so he can use it to get back to Earth.
    • West of Mars
      Season 2 - Episode 11
      Dr. Smith is confronted by an identical look-alike called Zeno, who is on the run from the law. Zeno makes him trade places and Dr. Smith, out of fear, confesses to Zeno's crimes. He is arrested and he and Will are taken away to appear in court.
    • Two Weeks in Space
      Season 3 - Episode 13
      Two aliens, who are actually intergalactic bank robbers, transform themselves into Earthlings. They revive a man named Zumdish who operates a tour agency and they pretend to be his clients. When the Robinson's are absent, Dr. Smith decides to turn the ship into a hotel, but he doesn't realize how dangerous his guests are.moreless
    • Curse of Cousin Smith
      Season 2 - Episode 10
      When Dr. Smith's cousin Jeremiah Smith arrives on the planet, everyone welcomes him, except Dr. Smith. Dr. Smith alienates himself from the family, and refuses to return until his cousin leaves. It is later discovered that Jeremiah's reasons for being on the planet are far deadlier than anyone imagined.
    • The Questing Beast
      Season 2 - Episode 17
      Will and Dr. Smith are confronted by a knight, who says he is on a quest to seek out and destroy the beast Gundemar. Penny, meanwhile, meets Gundemar and befriends her. Will becomes the pageboy of the knight. When it is discovered that the beast is woman, the knight is unsure whether he can still kill it, leading him to question his life's future.moreless
    • The Space Vikings
      Season 2 - Episode 20
      A storm looms up and the two gloves of Thor appear from space and straight into the waiting hands of Dr. Smith. He is then taken away to see the real Thor who will decide his fate.
    • Mutiny in Space
      Season 2 - Episode 19
      Dr. Smith's finds an alien ship and wants to use it to get back to earth, but he doesn't count for the owner of the ship admiral Zahik to turn up and wreck his plans.