Sci-Fi & FantasyAction & AdventureDramaNetflix

The Worst Episodes of Lost in Space

Every episode of Lost in Space ranked from worst to best. Explore the Worst Episodes of Lost in Space!

Worst episode
S3E1 Three Little Birds
7.21,625 votes
Best episode
S2E10 Ninety-Seven
8.42,482 votes
Top season
Season 2
7.8avg
Binge time
23h 25m
28 episodes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons3

All123

Episode Rankings

  1. #1 Worst Episode
    Click to reveal
    Lost in Space Season 3 Episode 1 - Three Little Birds
    7.2/10(1625 votes)

    S3:E1

    A year into their mission with the children of the Resolute, Judy, Penny and Will scramble to find the titanium they need to get to Alpha Centauri.

    Director:Frederick E. O. Toye
    Writers:Matt Sazama, Burk Sharpless

    Be the first to start the conversation for this episode

  2. Lost in Space Season 1 Episode 4 - The Robinsons Were Here
    7.3/10(2985 votes)

    S1:E4

    The Robinsons make contact with another family of survivors, and Will races to protect his family after Judy learns what happened aboard the Resolute.

    Director:Alice Troughton
    Writer:Katherine Collins

    Be the first to start the conversation for this episode

  3. Lost in Space Season 1 Episode 5 - Transmission
    7.3/10(2861 votes)

    S1:E5

    As the team builds a tower to signal the Resolute, Maureen investigates a planetary anomaly, and Will braces for a tough conversation with his dad.

    Director:Deborah Chow
    Writer:Kari Drake

    Be the first to start the conversation for this episode

  4. Lost in Space Season 1 Episode 7 - Pressurized
    7.3/10(2760 votes)

    S1:E7

    While Dr. Smith moves ahead with his secret project, seismic activity wreaks havoc across the planet and leaves two teams facing impossible choices.

    Director:Tim Southam
    Writer:Vivian Lee

    Be the first to start the conversation for this episode

  5. Lost in Space Season 3 Episode 5 - Stuck
    7.3/10(1393 votes)

    S3:E5

    After crashing on a boggy planet, Maureen and Judy contend with a massive salivating creature, while John and Penny work to free the trapped Robot.

    Director:Leslie Hope
    Writer:Kari Drake

    Be the first to start the conversation for this episode

  6. Lost in Space Season 1 Episode 1 - Impact
    7.4/10(4544 votes)

    S1:E1

    On the way to a space colony, a crisis sends the Robinsons hurtling towards an unfamiliar planet, where they struggle to survive a harrowing night.

    Director:Neil Marshall
    Writers:Matt Sazama, Burk Sharpless

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 BEST Episodes of Lost in Space

    READ
  7. Lost in Space Season 1 Episode 3 - Infestation
    7.4/10(3164 votes)

    S1:E3

    Flashbacks reveal clues to Dr. Smith's past. The Robinsons contend with a new threat as the ship's fuel supply starts dropping -- fast.

    Director:Tim Southam
    Writer:Zack Estrin

    Be the first to start the conversation for this episode

  8. Lost in Space Season 1 Episode 6 - Eulogy
    7.4/10(2865 votes)

    S1:E6

    Maureen debates whether to share what she saw in the sky, Don leads a mission to find fuel, and the robot's presence stokes tensions within the group.

    Director:Vincenzo Natali
    Writer:Ed McCardie

    Be the first to start the conversation for this episode

  9. Lost in Space Season 3 Episode 2 - Contact
    7.4/10(1440 votes)

    S3:E2

    While Judy sets out to find Grant Kelly, Penny and Will explore a mysterious tunnel. Light years away, Maureen, John and Don hunt for SAR's remains.

    Director:Kevin Rodney Sullivan
    Writer:Zack Estrin

    Be the first to start the conversation for this episode

  10. Lost in Space Season 1 Episode 2 - Diamonds in the Sky
    7.5/10(3536 votes)

    S1:E2

    Another crash brings more travellers to the planet as the Robinsons work to salvage their ship with help from their mysterious new companion.

    Director:Neil Marshall
    Writers:Matt Sazama, Burk Sharpless

    Be the first to start the conversation for this episode

  11. Lost in Space Season 1 Episode 9 - Resurrection
    7.5/10(2603 votes)

    S1:E9

    Judy sets out to find Maureen, while Will and Penny lead an expedition to the caves. Dr. Smith pursues a new escape plan.

    Director:Tim Southam
    Writer:Unknown

    Be the first to start the conversation for this episode

  12. Lost in Space Season 3 Episode 3 - The New Guy
    7.5/10(1416 votes)

    S3:E3

    Scarecrow helps Maureen and John plot an engine heist. Judy returns to camp with new passengers. Will makes a startling discovery in the alien city.

    Director:Sarah Boyd
    Writer:Vivian Lee

    Be the first to start the conversation for this episode

  13. Lost in Space Season 1 Episode 8 - Trajectory
    7.6/10(2689 votes)

    S1:E8

    Maureen finds a solution to the fuel issue, but putting her plan into action proves trickier than expected. Dr. Smith realises her cover is blown.

    Director:Stephen Surjik
    Writers:Kari Drake, Katherine Collins

    Be the first to start the conversation for this episode

  14. Lost in Space Season 2 Episode 1 - Shipwrecked
    7.6/10(2530 votes)

    S2:E1

    Seven months later, marooned on a watery planet, the Robinsons make a risky bid to power up their Jupiter, and Will vows to track down the Robot.

    Director:Alex Graves
    Writers:Matt Sazama, Burk Sharpless

    Be the first to start the conversation for this episode

  15. Lost in Space Season 2 Episode 2 - Precipice
    7.6/10(2237 votes)

    S2:E2

    Penny and Maureen become trapped in a mysterious metal trench, and Don falls prey to a nasty toxin.

    Director:Alex Graves
    Writer:Zack Estrin

    Be the first to start the conversation for this episode

  16. Lost in Space Season 2 Episode 3 - Echoes
    7.6/10(2153 votes)

    S2:E3

    The Robinsons' dreams of a happy reunion fade when they realize something's very wrong aboard the Resolute. Smith seizes a chance to clear her name.

    Director:Leslie Hope
    Writer:Liz Sagal

    Be the first to start the conversation for this episode

  17. Lost in Space Season 2 Episode 4 - Scarecrow
    7.6/10(2078 votes)

    S2:E4

    While Will searches for clues to the Robot's fate, John and Judy travel to the dusty surface of the nearby planet to help their fellow survivors.

    Director:Jon East
    Writer:Kari Drake

    Be the first to start the conversation for this episode

  18. Lost in Space Season 3 Episode 7 - Contingencies on Contingencies
    7.6/10(1409 votes)

    S3:E7

    The Robinsons race to get help for Will, warn the other colonists and activate a secret defense system. Vijay tags along with Penny on a risky outing.

    Director:Leslie Hope
    Writer:Zack Estrin

    Be the first to start the conversation for this episode

  19. Lost in Space Season 3 Episode 4 - Nothing Left Behind
    7.8/10(1382 votes)

    S3:E4

    As the adults race to destroy all clues to the location of Alpha Centauri, the Robinson kids receive an ominous message from SAR.

    Director:Julian Holmes
    Writer:Daniel McLellan

    Be the first to start the conversation for this episode

  20. Lost in Space Season 3 Episode 6 - Final Transmission
    7.8/10(1462 votes)

    S3:E6

    The story of Don's run-in with SAR leads the Robinsons to an alarming realization. Will sneaks out on a dangerous solo mission.

    Director:Julian Holmes
    Writer:Katherine Collins

    Be the first to start the conversation for this episode

  21. Lost in Space Season 2 Episode 5 - Run
    7.8/10(2207 votes)

    S2:E5

    John's predicament goes from bad to worse, sending Judy on a frantic race across the planet. Penny spies on Smith -- with help from an old friend.

    Director:Jon East
    Writer:Vivian Lee

    Be the first to start the conversation for this episode

  22. Lost in Space Season 2 Episode 7 - Evolution
    7.9/10(1998 votes)

    S2:E7

    John recruits an unlikely partner to help hunt down a secret audio signal intercepted by the ship. Will begins to suspect Adler is hiding something.

    Director:Tim Southam
    Writer:Daniel McLellan

    Be the first to start the conversation for this episode

  23. Lost in Space Season 2 Episode 6 - Severed
    7.9/10(2054 votes)

    S2:E6

    The fast-spreading contaminant leaves Penny, Smith and friends stranded in tight quarters. Will and Maureen set out with Adler to find the Robot.

    Director:Tim Southam
    Writer:Katherine Collins

    Be the first to start the conversation for this episode

  24. Lost in Space Season 2 Episode 9 - Shell Game
    8.0/10(2027 votes)

    S2:E9

    Will and Penny scramble to hide the robots and figure out their next move. Meanwhile, Hastings amps up his war against the Robinsons.

    Director:Stephen Surjik
    Writers:Zack Estrin, Vivian Lee

    Be the first to start the conversation for this episode

  25. Lost in Space Season 3 Episode 8 - Trust
    8.1/10(1812 votes)

    S3:E8

    As the battle for Alpha Centauri unfolds, the Robinsons and their friends risk everything to restore peace and pave the way for a better future.

    Director:Jabbar Raisani
    Writers:Matt Sazama, Burk Sharpless

    Be the first to start the conversation for this episode

Worst Episodes Summary

"Three Little Birds" is the worst rated episode of Lost in Space. It scored 7.2/10 from 1,625 votes. Directed by Frederick E. O. Toye and written by Matt Sazama, Burk Sharpless, it aired on December 1, 2021. This episode scored 0.1 points lower than the second lowest rated, "The Robinsons Were Here".

Keep going

Browse Lost in Space by season

If you like Lost in Space