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The Best Episodes of Lost in Space

Every episode of Lost in Space ranked from best to worst. Let's dive into the Best Episodes of Lost in Space!

Binge this in 23h 25m•Peaking at 8.4/10

After crash-landing on an alien planet, the Robinson family fights against all odds to survive and escape. But they're surrounded by hidden dangers.

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Episode Rankings

  1. #1 Fan Favorite
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    Lost in Space Season 2 Episode 10 - Ninety-Seven
    8.4/10(2481 votes)

    S2:E10

    The mission to save Scarecrow takes an unexpected turn, throwing the Resolute into chaos. Judy hatches a plan to get a ship to Alpha Centauri.

    Director:Alex Graves
    Writers:Matt Sazama, Burk Sharpless

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  2. Lost in Space Season 1 Episode 10 - Danger, Will Robinson
    8.1/10(3018 votes)

    S1:E10

    As the clock ticks down toward the Resolute's departure, the Robinsons scramble to get off the planet -- and out from under Dr. Smith's thumb.

    Director:David Nutter
    Writers:Matt Sazama, Burk Sharpless

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  3. Lost in Space Season 2 Episode 8 - Unknown
    8.1/10(2027 votes)

    S2:E8

    While Maureen leads a mutiny, Hastings visits John to deliver an ultimatum, and Penny tries to convince Will that his Robot has changed.

    Director:Jabbar Raisani
    Writers:Kari Drake, Katherine Collins

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  4. 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

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  5. Lost in Space Season 2 Episode 9 - Shell Game
    8.0/10(2026 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

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  6. Lost in Space Season 2 Episode 6 - Severed
    7.9/10(2053 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

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    The 20 WORST Episodes of Lost in Space

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  7. Lost in Space Season 2 Episode 7 - Evolution
    7.9/10(1996 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

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  8. Lost in Space Season 2 Episode 5 - Run
    7.8/10(2206 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

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  9. 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

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  10. 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

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  11. Lost in Space Season 1 Episode 8 - Trajectory
    7.6/10(2688 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:Katherine Collins, Kari Drake

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  12. Lost in Space Season 2 Episode 1 - Shipwrecked
    7.6/10(2529 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

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  13. Lost in Space Season 2 Episode 2 - Precipice
    7.6/10(2236 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

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  14. Lost in Space Season 2 Episode 3 - Echoes
    7.6/10(2152 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

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  15. Lost in Space Season 2 Episode 4 - Scarecrow
    7.6/10(2077 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

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  16. 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

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  17. Lost in Space Season 1 Episode 2 - Diamonds in the Sky
    7.5/10(3533 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

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  18. Lost in Space Season 1 Episode 9 - Resurrection
    7.5/10(2602 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

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  19. 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

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  20. Lost in Space Season 1 Episode 1 - Impact
    7.4/10(4537 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

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  21. Lost in Space Season 1 Episode 3 - Infestation
    7.4/10(3163 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

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  22. Lost in Space Season 1 Episode 6 - Eulogy
    7.4/10(2864 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

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  23. 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

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  24. Lost in Space Season 1 Episode 4 - The Robinsons Were Here
    7.3/10(2984 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

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  25. Lost in Space Season 1 Episode 5 - Transmission
    7.3/10(2860 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

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Best Episodes Summary

"Ninety-Seven" is the best rated episode of "Lost in Space". It scored 8.4/10 based on 2481 votes. Directed by Alex Graves and written by Matt Sazama, Burk Sharpless, it aired on 12/24/2019. This episode scored 0.3 points higher than the second highest rated, "Danger, Will Robinson".