Lost in Space
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Junkyard of Space
aired: Wed, Mar 6, 1968
While on a junkyard planet, Dr. Smith realizes the crew?s food supply is dwindling. So the devious Smith offers both the Robot and the Jupiter 2 to a mechanized junkman in order to get food.
The Great Vegetable Rebellion
aired: Wed, Feb 28, 1968
Dr. Smith picks a flower and is immediately accused of murder by a giant talking carrot, who says that he must now die!
The Flaming Planet
aired: Wed, Feb 21, 1968
A plant that thinks Dr. Smith is its mother attaches itself to the Jupiter 2.
aired: Wed, Feb 14, 1968
When Farnum B., Showman of the Cosmos, crash-lands on the Robinson's current planet, he immediately tries to recruit Judy for his Miss Galaxy Beauty Pageant. After Judy refuses, however, Smith signs her up anyway.
Fugitives in Space
aired: Wed, Jan 31, 1968
An alien prison escapee manages to exchange his prison jacket for Dr. Smith's parka. Mistaken for the criminal, Smith is then arrested, but thinking quickly, he tells the authorities that he is not their man - Don is!
The Promised Planet
aired: Wed, Jan 24, 1968
Once welcomed to do so, the Jupiter 2 arrives on a planet inside the Alpha Centauri solar system. But soon after landing, the Robinsons must rescue Will and Penny, who are taken captive by the planet's 14-year-old leader.
The Time Merchant
aired: Wed, Jan 17, 1968
The Robinsons accidentally interrupt the voyage of a time traveler, Chronos, and then, as always, Dr. Smith manages to upset him further. Now, Chronos seeks revenge and wants to steal away the remaining time the Robinsons have to live.
Princess of Space
aired: Wed, Jan 10, 1968
After searching for the long-lost Princess Alpha of Beta-Three, Captain Kraspo believes Penny may actually be the princess. Just before she is crowned, however, it becomes apparent that she is not the real royal.
aired: Wed, Jan 3, 1968
The never-helpful Dr. Smith accidentally launches the Space Pod into space while the lower half of the Robot is on board!
The Anti-Matter Man
aired: Wed, Dec 27, 1967
John Robinson is accidentally transported to an anti-matter world, where he is held captive by an evil replica of Don.
Castles In Space
aired: Wed, Dec 20, 1967
The Robinsons take in a princess who is being sought by a bounty hunter.
Two Weeks In Space
aired: Wed, Dec 13, 1967
Two clever alien bank robbers transform themselves into Earthlings. When the Robinsons head off on a trip without him, greedy Dr. Smith turns the ship into a hotel and rents it out to the aliens, not knowing how dangerous they are.
A Day At The Zoo
aired: Wed, Nov 29, 1967
Penny is captured and taken to an intergalactic zoo, where she is expected to be part of a show, along with the rest of her family.
Deadliest Of The Species
aired: Wed, Nov 22, 1967
In order to make repairs to the Jupiter 2, the Robinsons land on a planet where the Robot discovers a female robot. The Robot falls in love, only to find out that his metallic lady love is a hunter killer.
The Space Creature
aired: Wed, Nov 15, 1967
As if Dr. Smith isn't odd enough to begin with, an unusual creature takes over his personality.
Collision Of Planets
aired: Wed, Nov 8, 1967
A group of space hippies seek to destroy the Robinsons' planet!
Flight Into The Future
aired: Wed, Oct 25, 1967
While in the Space Pod, the bumbling Dr. Smith accidentally launches himself, Will and the Robot to a nearby planet, where they are startled to discover invisible birds, an apparent wreck of the Jupiter 2, and a monument honoring the Robot.
The Haunted Lighthouse
aired: Wed, Oct 18, 1967
The Robinsons give refuge aboard the Jupiter 2 to a lost alien boy named J-5 and agree to take him home. However, when J-5 learns that the ship lacks the fuel to do so, he sets out to destroy everyone and everything on the ship!
aired: Wed, Oct 11, 1967
While exploring a cave with the Robot, Smith hits buttons on a control panel he discovers, thereby activating a cyborg-creating device.
The Space Primevals
aired: Wed, Oct 4, 1967
After trying to seal a menacing volcano so that the Jupiter 2 can take off, Don West and Dr. Smith are captured by cavemen and taken to their leader ? an alien computer. Can the two men put aside their personal differences and plan an escape?
aired: Wed, Sep 27, 1967
After he and the Robot are attacked by a hairy mutant, John Robinson whips out his laser pistol and destroys the homely beast. Now, accused of trespassing on private property, the Robinsons must prove the value of humans!
Kidnapped In Space
aired: Wed, Sep 20, 1967
Another spaceship sends out an SOS because their leader, a computer, needs brain surgery.
Visit To A Hostile Planet
aired: Wed, Sep 13, 1967
Caught in a "time warp," the Jupiter 2 crew discover not only that they can now return to Earth, but it's suddenly 1947!
The Condemned Of Space
aired: Wed, Sep 6, 1967
Trying to escape from a flaming comet, the Robinsons come upon a spaceship filled with frozen alien criminals.
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The Galaxy Gift
aired: Wed, Apr 26, 1967
Penny becomes embroiled in a war between alien factions.
The Astral Traveler
aired: Wed, Apr 12, 1967
Will stumbles into a space-warp.
The Mechanical Men
aired: Wed, Apr 5, 1967
Dr. Smith and the Robot switch personalities.
The Phantom Family
aired: Wed, Mar 29, 1967
The Jupiter 2 is attacked by an alien monster.
Trip Through The Robot
aired: Wed, Mar 22, 1967
The Robot grows to enormous proportions.
aired: Wed, Mar 15, 1967
The Robinsons are in a showdown with a statuesque Amazon warrior.
Revolt Of The Androids
aired: Wed, Mar 8, 1967
Dr. Smith becomes involved with a ruby-devouring android.
Treasure Of The Lost Planet
aired: Wed, Mar 1, 1967
Will, Penny, Dr. Smith and the Robot search for a lost pirate's treasure.
The Cave Of The Wizards
aired: Wed, Feb 22, 1967
Dr. Smith is seduced by a giant computer.
Rocket To Earth
aired: Wed, Feb 15, 1967
Dr. Smith takes a job as an alien magician's assistant.
The Space Vikings
aired: Wed, Feb 8, 1967
Dr. Smith and Will have a mythological adventure.
Mutiny In Space
aired: Wed, Feb 1, 1967
Dr. Smith and the Robot discover an abandoned alien spacecraft.
aired: Wed, Jan 25, 1967
Will and Dr. Smith are transported to a fourth dimensional toyland.
The Questing Beast
aired: Wed, Jan 11, 1967
Penny, Will and Dr. Smith encounter a bumbling, enchanted knight.
The Girl From The Green Dimension
aired: Wed, Jan 4, 1967
Will, Dr. Smith and the Robot have an encounter with an enticing green woman.
The Golden Man
aired: Wed, Dec 28, 1966
Penny is caught in the middle of a war.
The Dream Monster
aired: Wed, Dec 21, 1966
An evil scientist drains the Robinsons of their feelings.
Wreck Of The Robot
aired: Wed, Dec 14, 1966
The Robot is captured and dismantled by aliens.
A Visit To Hades
aired: Wed, Dec 7, 1966
A magical lyre sends Dr. Smith to a Hades-like prison.
West Of Mars
aired: Wed, Nov 30, 1966
Dr. Smith is mistaken for a notorious intergalactic gunslinger.
Curse Of Cousin Smith
aired: Wed, Nov 16, 1966
Dr. Smith's cousin Jeremiah drops in.
The Thief from Outer Space
aired: Wed, Nov 9, 1966
Will helps an Arab Chieftain find a long-lost princess.
Deadly Games Of Gamma 6, The
aired: Wed, Nov 2, 1966
John is coaxed into an intergalactic wrestling match.
The Android Machine
aired: Wed, Oct 26, 1966
A female android joins the Jupiter 2.
The Prisoners Of Space
aired: Wed, Oct 19, 1966
A strange galaxy tribunal imprisons the Robinson family.
aired: Wed, Oct 12, 1966
Will tries to run off with an intergalactic circus.
aired: Wed, Oct 5, 1966
Dr. Smith and Will are taken prisoners.
The Ghost Planet
aired: Wed, Sep 28, 1966
Jupiter 2 lands on a planet mistaken for Earth.
aired: Wed, Sep 21, 1966
Jupiter 2 is set on direct a course towards the sun.
Blast Off Into Space
aired: Wed, Sep 14, 1966
Will and Dr. Smith battle an intergalactic prospector.
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Follow the Leader
aired: Wed, Apr 27, 1966
The mind and soul of Professor John Robinson is overtaken by an unseen alien spirit, forcing Robinson to turn against the family as he tries to take over the ship.
A Change of Space
aired: Wed, Apr 20, 1966
Will comes upon an alien spaceship that takes him to the Sixth dimension, transforming him into a boy genius. Jealous Dr. Smith uses the ship as well, with very different results.
The Lost Civilization
aired: Wed, Apr 13, 1966
John, Don and Will discover an underground world of soldiers frozen in suspended animation, waiting for their princess to be awakened by a kiss - so they can take over the universe.
All That Glitters
aired: Wed, Apr 6, 1966
Dr. Smith discovers the dark side of greed when he steals a magic disc that turns everything he touches - even Penny - into platinum.
The Space Croppers
aired: Wed, Mar 30, 1966
An oddball family of alien hillbillies ensnares the Robinsons. Their daughter tries to romance Don while their pet werewolf and fast-growing, man-eating plants spell trouble.
His Majesty, Smith
aired: Wed, Mar 16, 1966
Dr. Smith lobbies to become king of a luxurious planet named Andronica, only to discover he's to be used as a human sacrifice.
The Space Trader
aired: Wed, Mar 9, 1966
Dr. Smith makes a hard bargain when his dealings with a space trader go awry, and he finds himself in an intergalactic contract he's unable to break.
aired: Wed, Mar 2, 1966
A tough little alien boy and his father attempt to prove their superiority to humans by challenging John and Will Robinson to a test of strength and bravery.
The Magic Mirror
aired: Wed, Feb 16, 1966
Frustrated with impending adolescence, Penny falls into a mirror and enters a strange new dimension. There she befriends a lonely alien boy who tells her she can never leave Mirrorland - but she'll never have to grow up.
The War of the Robots
aired: Wed, Feb 9, 1966
The family's robot is seemingly replaced when Will repairs a robotoid from an advanced civilization - until the new machine wreaks havoc by trying to take over the ship.
Ghost in Space
aired: Wed, Feb 2, 1966
A strange, ghost-like presence appears after an explosion in a bog awakens it. Dr. Smith conducts a séance, certain the rampaging ghost is his dead uncle's spirit.
The Sky Pirate
aired: Wed, Jan 26, 1966
The Robinsons find new hope when they meet a marooned pirate with an interstellar vehicle capable of returning to Earth. But their plans are foiled when a slithering mass pursues the pirate in search of a stolen object.
The Keeper, Part 2
aired: Wed, Jan 19, 1966
Chaos reigns as the Keeper's creatures, let loose by the robot and Dr. Smith, overrun the planet. The Keeper refuses to stop the heinous animals unless the family gives him Penny and Will.
The Keeper, Part 1
aired: Wed, Jan 12, 1966
The family comes upon an evil alien zookeeper, whose trance-like powers can entice exotic animals-and young humans like Will and Penny-to follow him into captivity.
Return from Outer Space
aired: Thu, Dec 29, 1966
Will discovers a matter-transfer portal that returns him to Earth, but once there, the residents of a small town in Vermont have a hard time believing his stories of life in space.
Attack of the Monster Plants
aired: Wed, Dec 15, 1965
The family is threatened by a giant cyclamen plant that can create realistic duplicates of anything it absorbs. Soon the plant feeds on the Jupiter 2's fuel supply and then makes an evil version of Judy Robinson.
One Of Our Dogs is Missing
aired: Wed, Dec 8, 1965
A friendly little dog survives the crash of a space capsule and leads Professor Robinson and Don West to Judy, just in time to save her from the claws of a giant hairy mutant.
aired: Wed, Dec 1, 1965
Will comes up with an idea for a two-man ship that can travel to Earth. But when Dr. Smith hijacks the ship, a crash landing finds Will and Smith trapped in a jungle, pursued by a bush creature.
Wish Upon A Star
aired: Wed, Nov 24, 1965
When Dr. Smith and Will discover a magic wish-granting machine, the family becomes intoxicated with greed. But the party ends when a strange alien creature reclaims the magic machine.
The Sky is Falling
aired: Wed, Nov 17, 1965
The Robinsons confront their mistrust of an alien family that has beamed in from space. Unable to understand their language, they fear for Will's safety when he and the little alien boy disappear.
aired: Wed, Nov 10, 1965
The Robinsons' water crisis deepens when Dr. Smith uses their only water supply for a shower. But a strange alien fruit may be the answer-until it causes Smith to grow to twice his normal size.
Invaders From The Fifth Dimension
aired: Wed, Nov 3, 1965
Glowing humanoids invade the Robinsons' colony in search of a brain to navigate their ship. Their plan is foiled when Will's worry over his parents' safety makes his brain unusable.
My Friend, Mr. Nobody
aired: Wed, Oct 27, 1965
Penny befriends a lonely echo voice she calls "Mr. Nobody." But when the girl appears to be injured, the being's wrath threatens the Robinsons-until Penny persuades it not to hurt her family.
aired: Wed, Oct 20, 1965
The Robinsons try to persuade a long-stranded astronaut, James Hapgood, to take Will and Penny back to Earth. He refuses, but has a change of heart after a near tragedy befalls Penny.
The Hungry Sea
aired: Wed, Oct 13, 1965
Following a quick escape from an ancient city, the Robinsons must flee the heat of an unknown planet's sun. Heading through storms and earthquakes, they land safely--only to face an unknown entity from outer space.
There Were Giants in the Earth
aired: Wed, Oct 6, 1965
The Robinsons set up camp on a planet populated by strangely evolving life forms. As the family moves their camp in search of warmth, they are confronted by a giant Cyclops.
Island In The Sky
aired: Wed, Sep 29, 1965
The family crash-lands on an unknown planet in an attempt to rescue Professor Robinson. Maureen and the others use the chariot to man the search, only to face more havoc from Dr. Smith's diabolical schemes.
aired: Wed, Sep 22, 1965
Following a tense effort to rescue John Robinson from deep space, the Jupiter 2 is drawn inside a massive alien spaceship. There, the family confronts a strange race of bubble creatures.
The Reluctant Stowaway
aired: Wed, Sep 15, 1965
The Robinson family takes off on the pioneering launch of the Jupiter 2, towards a planet orbiting Alpha Centauri. But sabotage by Dr. Zachary Smith leaves the family and their robot lost in space.
No Place To Hide
aired: Wed, Sep 8, 1965
The Robinson family (without the later-to-be-added Robot B-9 and Dr. Smith characters) rockets into outer space, only to crash-land onto a desert planet.