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Lost in Space Season 1 Episodes

Season 1 Episode Guide

30 Episodes 1965 - 1993

Episode 0

No Place to Hide

Sat, Apr 24, 199352 mins

The original pilot episode, which never aired, did not feature either the Robot or Doctor Zachary Smith (who was added later by 20th Century Fox as an antagonist). Much of the original footage was re-used in the first four televised episodes.

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Episode 1

The Reluctant Stowaway

Wed, Sep 15, 196550 mins

An historic day. The Robinsons - John, Maureen, Judy, Penny and Will - become Earth's first family of outer space, on its way, accompanied by pilot Maj. Don West, to colonize a planet circling Alpha Centauri; however, Dr. Smith, as an enemy agent of a foreign power, means to set them on a course of doom by reprogramming the robot to destroy their ship, the Jupiter 2, eight hours in space. The unfortunate doctor winds up caught in his own treachery and hurls off into space with the Robinson party. His excess weight first throws the ship off course, then, with the robot coming to life and bashing all the controls, they all become "hopelessly lost in space."

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Lost in Space, Season 1 Episode 1 image

Episode 2

The Derelict

Wed, Sep 22, 196550 mins

Heat from an approaching comet nearly spells doom for Maureen and John who are stuck outside the ship after a rescue and repair operation. Afterwards, Will and Dr. Smith make a first-contact encounter with aliens when a gigantic and seemingly derelict spaceship pulls the Jupiter 2 inside itself.

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Lost in Space, Season 1 Episode 2 image

Episode 3

Island in the Sky

Wed, Sep 29, 196550 mins

When John Robinson loses control of his spacewalk and falls onto a nearby planet, Dr. Smith, in command of the Robot, immediately tries to force Don and Maureen into returning to Earth rather than going after John. Thanks to some quick thinking, Smith's takeover is thwarted and the Jupiter II braces for a crash landing. Finding the planet cold but habitable, Don and the Robinsons venture out in their chariot to find John, believing they've left Dr. Smith under control. They haven't, and the scheming Doctor continues to lay plans with the robot against the Robinsons.

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Episode 4

There Were Giants in the Earth

Wed, Oct 6, 196550 mins

After Will averts the Robot's murderous intent, the Robinson party comes under threat by native creatures at extreme size ranges. Parasitic microbes in the soil await catalysts to infest and grow into monstrous proportions while a giant cyclops roams the area. Adding to that, the weather takes an extreme turn for the worse, forcing them to abandon ship. A cave containing the remains of a civilized people provides temporary sanctuary but also a danger for the curious.

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Episode 5

The Hungry Sea

Wed, Oct 13, 196550 mins

The inherent dangers of the alien planet continue as the Robinsons flee south to avoid the terrible, sub-zero deep freeze threatening them. Dr. Smith defiantly stays behind in the Jupiter 2 where he obtains peculiar orbital data. Initially delighted that the Robinsons are blindly heading to their doom, deprivation from human contact finally gets to the devious doctor and he sends the robot to warn them that they're jumping straight from a freezer into a frying pan. And a once-frozen sea becomes a tempest-tossed danger.

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Lost in Space, Season 1 Episode 5 image

Episode 6

Welcome Stranger

Wed, Oct 20, 196550 mins

Will's open radio signal brings in Jimmy Hapgood, a fellow lost traveler who left Earth back in 1982 on a one-man ship he calls Travelin' Man. It's a good little craft that could make it back to Earth, giving Prof. Robinson the idea of sending him back along with Will and Penny. That suits Dr, Smith just fine but with himself in Will and Penny's place. Meanwhile, an incomplete decontamination of Travelin' Man spawns trouble.

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Lost in Space, Season 1 Episode 6 image

Episode 7

My Friend, Mr. Nobody

Wed, Oct 27, 196550 mins

Feeling lonely and alienated from her family, Penny finds solace in her friendship with Mr. Nobody, a voice that lives in a cave near a spring. Mr. Nobody is in fact a bodiless life force who becomes fiercely protective of his human friend. Trouble arises when Smith discovers that the jacks Mr. Nobody gave Penny as playthings are diamonds.

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Lost in Space, Season 1 Episode 7 image

Episode 8

Invaders from the Fifth Dimension

Wed, Nov 3, 196550 mins

Macabre aliens -- quite literally talking heads -- need a humanoid brain to replace a worn out computer in their spaceship. They capture Smith, but quickly realize that his brain is unsatisfactory. The aliens release Smith so that he can bring them somebody more suitable: "a small Robinson."

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Lost in Space, Season 1 Episode 8 image

Episode 9

The Oasis

Wed, Nov 10, 196550 mins

During a time of dangerously high temperatures and severe drought, the only glimmer of relief comes in the form of native fruit found floating in an undrinkable pool. It might be toxic. Before the fruit can be properly tested, Debbie the Bloop and Dr. Smith help themselves to it. Dr. Smith believes the Robinsons left it out deliberately for him to find and poison himself with it. Thinking he'll soon die by their treachery, he enacts revenge by taking the last working fuel cell to their water reclamation unit, leaving them to slowly die of thirst while he himself wanders off to die alone. As it turns out, the fruit isn't poisonous but it isn't harmless either, having a monstrous effect on all who eat it.

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Lost in Space, Season 1 Episode 9 image

Episode 10

The Sky Is Falling

Wed, Nov 17, 196550 mins

A small, crab-like robot heralds the arrival of a family of colonists from an alien race called the Taurons. John believes that they are peaceful settlers, but Smith insists that they are the vanguard of an invading army.

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Lost in Space, Season 1 Episode 10 image

Episode 11

Wish Upon a Star

Wed, Nov 24, 196550 mins

Dr. Smith goes into voluntary exile after John confronts him when his laziness and carelessness threaten the group's survival. With Will's assistance, Smith makes a home in the wreck of an alien spaceship. In it, they find a small alien machine that materializes the operator's wishes.

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Lost in Space, Season 1 Episode 11 image

Episode 12

The Raft

Wed, Dec 1, 196550 mins

Will's "message-in-a-bottle" experiments deplete the supply of fuel for the Jupiter 2. John and Don work on an alternate fuel source, but they cannot stabilize the output. Deciding to build a smaller, 2-man craft, they pull the reactor chamber out and use Will's experiments to construct a "space raft."

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Lost in Space, Season 1 Episode 12 image

Episode 13

One of Our Dogs Is Missing

Wed, Dec 8, 196550 mins

With Don, John, Will and the robot away to establish relay stations, a meteor shower precedes the appearance of two fanged visitors to the planet - a seemingly innocent Earth dog and a seemingly dangerous horned gorilla-bear hybrid, both with interests in those back at the Jupiter 2. Dr. Smith, relentlessly paranoiac, firmly believes the dog is an alien spy, while Judy and Maureen fear the presence of the other creature, which stalks them unseen.

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Lost in Space, Season 1 Episode 13 image

Episode 14

Attack of the Monster Plants

Wed, Dec 15, 196550 mins

As the Robinsons accumulate the last amounts of fuel needed for lift off, Smith is expelled from the camp when his cowardice and sloth nearly costs the men's lives. John is undecided about taking Smith when they leave, but the doctor discovers that the peculiar reproductive habits of alien cyclamen plants might give him the upper hand.

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Lost in Space, Season 1 Episode 14 image

Episode 15

Return from Outer Space

Wed, Dec 29, 196550 mins

Penny discovers an egg on the transportation machine left behind by the Taurons. After Dr. Smith makes off with it, Penny is trapped in a maser beam accidentally activated by Debbie the bloop. Both vanish. Will wonders if the machine has had anything to do with her unexplained disappearance and, with the Robot's help, effectively brings her back. She has no memory of the experience, and everyone comes to take Will's report as just fanciful imagination. Nevertheless, Prof. Robinson thinks they should destroy the machine to keep Will from playing around with it. Distressed by its imminent and needless destruction, Will takes the Robot and has himself beamed to Earth, with instructions for the Robot to bring him back in four hours. On Earth, Will is taken for a runaway with fanciful tales; back on the planet, Dr. Smith takes the Robot away for selective reprogramming while John and Don arrive to destroy the alien machine.

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Lost in Space, Season 1 Episode 15 image

Episode 16

The Keeper: Part 1

Wed, Jan 12, 196650 mins

The Keeper, a collector of animal specimens, comes to the planet to collect two of every kind. The Robinson party only becomes aware of his presence after Dr. Smith is ultra-sonically mesmerized into entering one of his cages. The Keeper, who can be as charming as he is condescendingly arrogant, eventually comes to see the Robinsons and thereafter sets out to add a couple of them to his collection.

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Lost in Space, Season 1 Episode 16 image

Episode 17

The Keeper: Part 2

Wed, Jan 19, 196650 mins

Dr. Smith tries to steal the Keeper's spaceship, but succeeds only in releasing his collection of animals, many of them dangerous. Although The Keeper can easily recall his creatures, he refuses to do so unless the Robinsons give him Penny and Will.

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Lost in Space, Season 1 Episode 17 image

Episode 18

The Sky Pirate

Wed, Jan 26, 196650 mins

To the planet comes a one-man spacecraft bearing the self-professed pirate Alonzo P. Tucker. He and his mechanical parrot capture Will and Dr. Smith. He releases Smith over Will (thanks to Smith's self-serving negotiating skills) then bargains with the Robinsons: Will's safe return in exchange for repairs to his ship. Will, however, is really in no danger and has, in fact, bonded with Tucker over Tucker's tall tales of adventure. Nevertheless, John accepts the terms, Will is returned, and Tucker's ship is examined. To John and Don's astonishment, it's a hyperspace vehicle that could shuttle them all back to Earth. The future looks rosy indeed for both the Robinson party and for Earth's space program except for one thing - Tucker has failed to mention he's on the run from a boulder-sized alien blob who's none too pleased with his past plundering behavior, putting them all in apparent danger.

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Lost in Space, Season 1 Episode 18 image

Episode 19

Ghost in Space

Wed, Feb 2, 196650 mins

The Robinson party comes under a new threat created by Dr. Smith when he ditches an explosive in a bog full of ionized gas. The result is an invisible monster that abhors sunlight. Dr. Smith believes it's the ghost of his Uncle Thaddeus, returned from the spirit world to vent his displeasure at non-believers. Smith's efforts to placate this "spirit" puts at least one of the Robinson children in particular peril.

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Episode 20

War of the Robots

Wed, Feb 9, 196650 mins

Will and the robot come upon a dead "robotoid." Will wants a crack at fixing it while the robot wants it left alone or destroyed. In fact, something quite strange is happening with the Robinson's robot: he's developing beyond his programming, becoming more than just machine. Thanks to Will's repairs, the robotoid comes to life, but while it quickly presents itself as a subservient boon to the Robinsons, it secretly softens them up for capture by its distant alien masters, who are on their way.

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Episode 21

The Magic Mirror

Wed, Feb 16, 196650 mins

Penny and Dr. Smith enter the twilight world of the looking glass when they fall into a full-length alien mirror. Behind the glass lives a care-free Peter Pan-like boy and a shaggy one-eyed monster forever chasing him, but while Penny's mind can accept these things for what they are, Dr. Smith's can't.

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Lost in Space, Season 1 Episode 21 image

Episode 22

The Challenge

Wed, Mar 2, 196650 mins

The Robinson party meets Quano, a stoic twelve-year-old alien boy from a warrior race who's on the planet for a survival challenge. Since Will is near his age, a fight-challenge is offered. Will has no interest in fighting without reason, but Quano wants the challenge, in part to prove his superiority but also to prove his worthiness as heir apparent to his often-absent father, ruler of their male-dominated race. Quano finally goads Will into accepting, but Will doesn't know that, if he wins, Quano's family with have to destroy him and all witnesses. Dr. Smith surreptitiously learns of this and, threatened into silence, works to wear Will down with over-training before the contest, to save their lives.

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Lost in Space, Season 1 Episode 22 image

Episode 23

The Space Trader

Wed, Mar 9, 196650 mins

A sudden storm destroys the Robinson's food supply, artificially created by an unscrupulous space trader with an ulterior motive. He thereafter makes himself known and uses food to lure them into trading, but Prof. Robinson stands fast. Stuck with limited rations (practically nothing more than a few protein pills and a swig of water), only Dr. Smith among the Robinson party grumbles. The trader soon has Smith doing business, at first trading the robot for food, then for Smith himself to trade the robot back. By verbal agreement, the trader intimates he wouldn't collect Smith for another 200 years, but verbal indications aren't binding, and under the fine print of their signed contract, the trader exercises a clause whereby he can collect - now! (his intent all along).

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Lost in Space, Season 1 Episode 23 image

Episode 24

His Majesty Smith

Wed, Mar 16, 196650 mins

Once again, Dr. Smith's character flaws lead him into trouble. His avarice triggers a bejeweled crown, summoning an alien race from Andronica who ostensibly ask Will to be their king (since Will wears the crown when they arrive). Will declines and Dr. Smith thinks himself cleaver by cunningly veering their interest onto him instead, thereafter becoming into a royal pain (ready to behead Don for past grievances). Truth is, the crown is a baited hook seeking to latch onto the worst of all men. (Dr. Smith can't remove it from his own head till Will, pure of heart, lifts it off easily.) The Andronicans' interest has always been for Zachary alone. Their annual Festival of Sacrifice demands they find a most worthless man to crown as king, to be sacrificed for good luck and the betterment of all in the coming year. With the Robinsons bent on launching a rescue, the chief Andronican creates a Smith-duplicate, imbued with all the industrious and selfless qualities they admire (everything the real Smith is not) to satisfy the Robinsons. It works, but the real Smith manages to escape. Now the Robinsons have two Smith's on their hands with an angry and superior force of Andronicans coming after them all.

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Lost in Space, Season 1 Episode 24 image

Episode 25

The Space Croppers

Wed, Mar 30, 196650 mins

When a howl has Dr. Smith crying werewolf, he, for once, isn't mistaken. An enchanted family has come to the planet to sow some crops and be on their way. The mother and daughter are enchantresses (witches, if you will) while their clumsy, tongueless lout of a son/brother is a werewolf. Smith suspects none of this. He sees them only a free ride back to Earth and begins wooing the hard-bitten, widowed mother for passage. What is not known about this family is that, once they leave, their ravenous plants left behind will consume all life on the planet.

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Lost in Space, Season 1 Episode 25 image

Episode 26

All That Glitters

Wed, Apr 6, 196650 mins

With only the women and Dr. Smith at the Jupiter 2, a fugitive alien named Ohan is taken in by Penny. He's a professional galactic thief and the target of a planned man-hunt by a brutish space officer and his two tracking beasts. Dr. Smith is not interested in Ohan's plight until Penny reveals he's left a disk in her safekeeping that can lead anyone to the greatest treasure in the galaxy. The disk itself provides a warning against seeking it, which Dr. Smith, greedy as ever, ignores. The treasure turns out to be a clasped, close-fitting neck ring that provides any wearer the Midas Touch, which is now Dr. Smith's, but his initial delight turns to horror when the clasp vanishes and the treasure becomes a death sentence.

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Episode 27

The Lost Civilization

Wed, Apr 13, 196650 mins

Surviving lava-bombs from a volcanic eruption during their expedition through a desert to find drinking water, Don, John, Will and the robot take shelter in a cave to repair the chariot's air conditioner that Dr. Smith (safely out of reach back at the Jupiter 2) discombobulated for his own selfish needs. As Don and John begin repairs, earthquakes topple Will and the robot into a pit where they find an ocean of drinking water, a sleeping princess whom Will must kiss to awaken, and a stockpile of soldiers in suspended animation awaiting the fulfillment of a prophesy to begin their conquest of the universe.

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Lost in Space, Season 1 Episode 27 image

Episode 28

A Change of Space

Wed, Apr 20, 196650 mins

In search of precious metals, Smith, with Will in tow, discovers a compact alien space craft. The Robinson party all come to look at it, peaking Smith's interest only after the robot reports its faster than light capabilities. Will, returning later to repair the damaged robot whom Smith ordered to approach the defended alien craft, succumbs to curiosity, gets trapped aboard, and blasts off on a faster-than-light galactic journey. The round-trip flight turns him into a super genius, leaving him intellectually with little in common with his family. Smith, hoping to become a super genius as well, takes a round-trip flight of his own, but the experience leaves him a wizened old man instead. After Will blasts off on a second flight to see if the ship's effects can be reversed, the scaly alien owner appears, angrily demanding the return of his stolen property while taking Smith hostage.

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Lost in Space, Season 1 Episode 28 image

Episode 29

Follow the Leader

Wed, Apr 27, 196650 mins

Professor Robinson, after being trapped in a cave overnight, comes under the spell of an alien entity. The alien, desperate to leave the planet, guides the professor through the repair process, but others, seeing the change in personality, question the mental health of John Robinson. Will they manage to save the professor's humanity, or will the alien personality be successful at killing all those who threaten his plan?

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Lost in Space, Season 1 Episode 29 image