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Lost in Space Season 3 Episodes

Season 3 Episode Guide

25 Episodes 1967 - 1968

Episode 1

The Condemned of Space

Wed, Sep 6, 1967 60 mins

The Robinsons board a computer-controlled spacecraft filled with frozen men. John: Guy Williams. Smith: Jonathan Harris. Don: Mark Goddard. Phanzig: Marcel Hillaire. Maureen: June Lockhart.

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Lost in Space, Season 3 Episode 1 image

Episode 2

Visit to a Hostile Planet

Wed, Sep 13, 1967 60 mins

A time warp transports the travelers to a hostile planet---Earth as it was in 1947. Smith: Jonathan Harris. Cragmire: Robert Foulk. John: Guy Williams. Maureen: June Lockhart. Will: Billy Mumy. Grover: Pitt Herbert. Don: Mark Goddard. Penny: Angela Cartwright. Judy: Marta Kristen.

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Lost in Space, Season 3 Episode 2 image

Episode 3

Kidnapped in Space

Wed, Sep 20, 1967 60 mins

Mechanical men threaten the travelers with death unless someone can fix their robot leader. Smith: Jonathan Harris. Alien 764: Grant Sullivan. John: Guy Williams. Don: Mark Goddard. Alien 1220: Carol Williams.

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Lost in Space, Season 3 Episode 3 image

Episode 4

Hunter's Moon

Wed, Sep 27, 1967 60 mins

John is captured by a maniacal humanoid---and made the quarry in a sadistic big-game hunt. Megazor: Vincent Beck. Will: Billy Mumy. Smith: Jonathan Harris. Don: Mark Goddard. Maureen: June Lockhart. Penny: Angela Cartwright. Judy: Marta Kristen.

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Lost in Space, Season 3 Episode 4 image

Episode 5

The Space Primevals

Wed, Oct 4, 1967 60 mins

In an attempt to rescue Don and Smith, the Robinsons pit their robot against a computer that rules a race of primitive aliens. Don: Mark Goddard. Smith: Jonathan Harris. Maureen: June Lockhart. John: Guy Williams. Rangah: Arthur Batanides.

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Lost in Space, Season 3 Episode 5 image

Episode 6

The Space Destructors

Wed, Oct 11, 1967 60 mins

Dr. Smith activates a robot-manufacturing machine that turns out an army of obedient automatons. Will: Billy Mumy. John: Guy Williams. Don: Mark Goddard. Cyborg: Tommy Farrell.

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Lost in Space, Season 3 Episode 6 image

Episode 7

The Haunted Lighthouse

Wed, Oct 18, 1967 60 mins

The Robinsons are endangered by a youngster who has put himself in control of their imaginations. John: Guy Williams. Colonel: Woodrow Parfrey. J-5: Lou Wagner. Don: Mark Goddard. Smith: Jonathan Harris. Will: Billy Mumy. Maureen: June Lockhart. Penny: Angela Cartwright.

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Lost in Space, Season 3 Episode 7 image

Episode 8

Flight Into the Future

Wed, Oct 25, 1967 60 mins

The space adventurers search for reality in a world of fantastic illusions. Smith: Jonathan Harris. Will: Billy Mumy. Don: Mark Goddard. Maureen: June Lockhart. John: Guy Williams. Fletcher: Lew Gallo.

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Lost in Space, Season 3 Episode 8 image

Episode 9

Collision of the Planets

Wed, Nov 8, 1967 60 mins

Space cyclists---misfits of the universe---are ordered to destroy the Robinsons' planet. Smith: Jonathan Harris. John: Guy Williams. Ilan: Dan Travanty. Don: Mark Goddard.

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Lost in Space, Season 3 Episode 9 image

Episode 10

The Space Creature

Wed, Nov 15, 1967 60 mins

A blue mist causes the travelers to disappear one by one---until only Will is left. John: Guy Williams. Don: Mark Goddard. Maureen: June Lockhart. Smith: Jonathan Harris. Judy: Marta Kristen. Penny: Angela Cartwright.

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Lost in Space, Season 3 Episode 10 image

Episode 11

Deadliest of the Species

Wed, Nov 22, 1967 60 mins

The Robinsons' robot flips over a mechanical beauty programmed for pure evil. Robot: Bob May. Female Robot: Sue England. John: Guy Williams. Maureen: June Lockhart. Will: Billy Mumy. Smith: Jonathan Harris.

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Lost in Space, Season 3 Episode 11 image

Episode 12

A Day at the Zoo

Wed, Nov 29, 1967 60 mins

The space travelers try desperately to end a day at the zoo---in which they have become specimens. Will: Billy Mumy. Smith: Jonathan Harris. Don: Mark Goddard. Farnum B: Leonard Stone. Oggo: Gary Tigerman. Penny: Angela Cartwright. Judy: Marta Kristen.

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Lost in Space, Season 3 Episode 12 image

Episode 13

Two Weeks in Space

Wed, Dec 13, 1967 60 mins

Smith turns the Jupiter 2 into a hotel for humanoids---unaware that they are fugitives from space justice. Zumdish: Fritz Feld. Non: Edy Williams. Robot: Bob May. Tat: Carroll Roebke. QZW: Eric Matthews. MXR: Richard Krisher. Will: Bill Mumy. Don: Mark Goddard. John: Guy Williams.

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Lost in Space, Season 3 Episode 13 image

Episode 14

Castles in Space

Wed, Dec 20, 1967 60 mins

A Spanish-spouting bandit threatens to hold Will until the Robinsons hand over a defrosted ice princess. Smith: Jonathan Harris. Will: Billy Mumy. Don: Mark Goddard. Reyka: Corinna Tsopei. Robot: Bob May.

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Lost in Space, Season 3 Episode 14 image

Episode 15

Antimatter Man

Wed, Dec 27, 1967 60 mins

Will and the robot try to rescue the kidnapped Prof. Robinson---in a macabre world of orange grass, polka-dotted leaves and animated rocks. John/Antimatter: Guy Williams. Smith: Jonathan Harris. Don/Drun: Mark Goddard. Robot: Bob May. Maureen: June Lockhart.

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Lost in Space, Season 3 Episode 15 image

Episode 16

Target: Earth

Wed, Jan 3, 1968 60 mins

Will tries to brew dissension among shapeless aliens who plan to conquer Earth. Robot: Bob May. John: Guy Williams. Don: Mark Goddard. Smith: Jonathan Harris. Maureen: June Lockhart. Judy: Marta Kristen. Penny: Angela Cartwright.

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Lost in Space, Season 3 Episode 16 image

Episode 17

Princess of Space

Wed, Jan 10, 1968 60 mins

Penny agrees to impersonate a long-lost princess to help quash a computer uprising. Kraspo: Robert Foulk. Fedor: Arte Johnson. Gamma: Sheila Mathews. Will: Billy Mumy. Smith: Jonathan Harris.

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Lost in Space, Season 3 Episode 17 image

Episode 18

The Time Merchant

Wed, Jan 17, 1968 60 mins

Smith tricks a time merchant into returning him to Earth---a process that endangers the Robinsons' lives. Chronos: John Crawford. John: Guy Williams. Will: Billy Mumy. Maureen: June Lockhart.

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Lost in Space, Season 3 Episode 18 image

Episode 19

The Promised Planet

Wed, Jan 24, 1968 60 mins

The Robinsons get a reception on a planet populated by music-loving teenagers. Will: Bill Mumy. Penny: Angela Cartwright. Bartholomew: Gil Rogers. Robot: Bob May. Smith: Jonathan Harris. John: Guy Williams. Don: Mark Goddard. Maureen: June Lockhart.

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Lost in Space, Season 3 Episode 19 image

Episode 20

Fugitives in Space

Wed, Jan 31, 1968 60 mins

Don and Smith are convicted on a false charge---and sentenced to the toughest prison planet in the galaxy. Creech: Michael Conrad. Will: Billy Mumy. Warden: Tol Avery. Robot: Bob May.

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Lost in Space, Season 3 Episode 20 image

Episode 21

Space Beauty

Wed, Feb 14, 1968 60 mins

Trouble begins when Dr. Smith tricks Judy into entering an enigmatic dictator's beauty contest. Nancy: Dee Hartford. Farnum: Leonard Stone.

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Lost in Space, Season 3 Episode 21 image

Episode 22

The Flaming Planet

Wed, Feb 21, 1968 60 mins

The Robinsons must contend with a rapidly growing plant---and missiles fired by aliens. John: Guy Williams. Sobram: Abraham Sofaer. Smith: Jonathan Harris. Will: Billy Mumy. Maureen: June Lockhart.

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Lost in Space, Season 3 Episode 22 image

Episode 23

The Great Vegetable Rebellion

Wed, Feb 28, 1968 60 mins

The Robinsons land on a planet where plants talk---and seek revenge against the animal world. Tybo: Stanley Adams. Smith: Jonathan Harris. John: Guy Williams. Will: Billy Mumy. Robot: Bob May. Don: Mark Goddard. Judy: Marta Kristen.

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Lost in Space, Season 3 Episode 23 image

Episode 24

Junkyard in Space

Wed, Mar 6, 1968 60 mins

A galactic junkman threatens to melt down the Jupiter 2 and cannibalize the Robot (Bob May). Smith: Jonathan Harris. Will: Billy Mumy. John: Guy Williams.

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Lost in Space, Season 3 Episode 24 image

Episode 25

Weck of the Robot

Thu, Jul 15, 2021 60 mins

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