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The Best Episodes of Slow Horses

Every episode of Slow Horses ranked from best to worst. Let's dive into the Best Episodes of Slow Horses!

Binge this in 1d 3h•Peaking at 8.8/10

Follow a dysfunctional team of MI5 agents—and their obnoxious boss, the notorious Jackson Lamb—as they navigate the espionage world's smoke and mirrors to defend England from sinister forces.

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Episode Rankings

  1. #1 Fan Favorite
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    Slow Horses Season 4 Episode 6 - Hello Goodbye
    8.8/10(3680 votes)

    #1 - Hello Goodbye

    S4:E6

    Impossible decisions are faced and sacrifices are made.

    Director:Adam Randall
    Writer:Will Smith

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  2. Slow Horses Season 3 Episode 5 - Cleaning Up
    8.7/10(3442 votes)

    #2 - Cleaning Up

    S3:E5

    Taverner and Tearney face off for control of MI5. River and Louisa find themselves caught in the crossfire.

    Director:Saul Metzstein
    Writers:Jonny Stockwood, Mark Denton

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  3. Slow Horses Season 2 Episode 6 - Old Scores
    8.6/10(3674 votes)

    #3 - Old Scores

    S2:E6

    Lamb and Katinsky go head-to-head. Ho finds himself trapped on a train with a Russian assassin.

    Director:Jeremy Lovering
    Writer:Will Smith

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  4. Slow Horses Season 3 Episode 3 - Negotiating with Tigers
    8.6/10(3431 votes)

    #4 - Negotiating with Tigers

    S3:E3

    Marcus and Shirley face Lamb's wrath. River discovers revenge is a dish best served cold.

    Director:Saul Metzstein
    Writer:Will Smith

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  5. Slow Horses Season 3 Episode 6 - Footprints
    8.6/10(3754 votes)

    #5 - Footprints

    S3:E6

    The Slow Horses fight for their lives. Lamb shares some devastating truths with Catherine.

    Director:Saul Metzstein
    Writer:Will Smith

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  6. Slow Horses Season 4 Episode 5 - Grave Danger
    8.6/10(3076 votes)

    #6 - Grave Danger

    S4:E5

    Lamb questions David about France as River comes face to face with the enemy.

    Director:Adam Randall
    Writers:Will Smith, Jonny Stockwood, Mark Denton

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    The 20 WORST Episodes of Slow Horses

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  7. Slow Horses Season 2 Episode 5 - Boardroom Politics
    8.5/10(3437 votes)

    #7 - Boardroom Politics

    S2:E5

    Lamb orders his Slow Horses to walk into traps. River believes something alarming is heading toward London.

    Director:Jeremy Lovering
    Writers:Jonny Stockwood, Mark Denton

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  8. Slow Horses Season 5 Episode 6 - Scars
    8.5/10(3080 votes)

    #8 - Scars

    S5:E6

    It's up to the Slow Horses to stop Farouk's team from completing its mission in a final act of mass carnage.

    Director:Saul Metzstein
    Writer:Will Smith

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  9. Slow Horses Season 6 Episode 4 - Lost & Found
    8.5/10(1112 votes)

    #9 - Lost & Found

    S6:E4

    Lamb tries figuring out who Frank is working for. Sid, River, and Coe do everything to evade the hit squad.

    Director:Adam Randall
    Writers:Jonny Stockwood, Mark Denton

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  10. Slow Horses Season 6 Episode 5 - Sayonara
    8.5/10(11 votes)

    #10 - Sayonara

    S6:E5

    River goes after Sid. Lamb sets his sights on Cantor. Taverner carries on with a treacherous deal.

    Director:Adam Randall
    Writer:Sophie Goodhart

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  11. Slow Horses Season 4 Episode 1 - Identity Theft
    8.4/10(3447 votes)

    #11 - Identity Theft

    S4:E1

    A London bombing puts Taverner under pressure. When River grows concerned for his grandfather, Louisa encourages him to go for a visit.

    Director:Adam Randall
    Writer:Will Smith

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  12. Slow Horses Season 5 Episode 5 - Circus
    8.4/10(2750 votes)

    #12 - Circus

    S5:E5

    Lamb debriefs River and Coe. Roddy is pulled in to help decipher a piece of code as the destabilization strategy nears its final stage.

    Director:Saul Metzstein
    Writer:Will Smith

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  13. Slow Horses Season 3 Episode 2 - Hard Lessons
    8.3/10(3259 votes)

    #13 - Hard Lessons

    S3:E2

    River has to steal something out of the Park to save a life. Lamb realizes a stranger game is afoot.

    Director:Saul Metzstein
    Writer:Will Smith

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  14. Slow Horses Season 3 Episode 4 - Uninvited Guests
    8.3/10(3134 votes)

    #14 - Uninvited Guests

    S3:E4

    Tearney makes a bold move. The Slow Horses assist the Tiger Team, unaware of their hidden agenda. Lamb and Ho take a road trip.

    Director:Saul Metzstein
    Writers:Jonny Stockwood, Mark Denton

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  15. Slow Horses Season 6 Episode 1 - Circle of Life
    8.3/10(1764 votes)

    #15 - Circle of Life

    S6:E1

    River braces for his grandfather's funeral. Lamb looks into the death of an ex–Slow Horse.

    Director:Adam Randall
    Writer:Gaby Chiappe

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  16. Slow Horses Season 6 Episode 2 - Daddy Issues
    8.3/10(1357 votes)

    #16 - Daddy Issues

    S6:E2

    The reemergence of Frank Harkness and a suspicious string of murders put Lamb and team on high alert.

    Director:Adam Randall
    Writer:Edward Docx

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  17. Slow Horses Season 6 Episode 3 - Resurrection
    8.3/10(1236 votes)

    #17 - Resurrection

    S6:E3

    Ex–Slow Horses return to the fold as assassins close in. Taverner faces the fallout of her TV interview.

    Director:Adam Randall
    Writer:Sophie Goodhart

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  18. Slow Horses Season 1 Episode 5 - Fiasco
    8.2/10(4044 votes)

    #18 - Fiasco

    S1:E5

    The Slow Horses must disappear to avoid capture by MI5. Lamb and River head to The Park to outwit Taverner.

    Director:James Hawes
    Writers:Jonny Stockwood, Mark Denton

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  19. Slow Horses Season 1 Episode 6 - Follies
    8.2/10(4184 votes)

    #19 - Follies

    S1:E6

    Taverner and the Slow Horses attempt different approaches to locate the kidnappers and Hassan. Ho makes a shocking discovery about Sid.

    Director:James Hawes
    Writer:Will Smith

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  20. Slow Horses Season 2 Episode 3 - Drinking Games
    8.2/10(3370 votes)

    #20 - Drinking Games

    S2:E3

    River gets cozy in the Cotswolds while searching for a sleeper agent. Min discovers Russian drinking games are the most brutal of all.

    Director:Jeremy Lovering
    Writer:Morwenna Banks

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  21. Slow Horses Season 2 Episode 4 - Cicada
    8.2/10(3320 votes)

    #21 - Cicada

    S2:E4

    Louisa makes her move on Pashkin. Catherine makes moves of a different kind when she plays high-stakes chess with a sinister stranger.

    Director:Jeremy Lovering
    Writers:Jonny Stockwood, Mark Denton

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  22. Slow Horses Season 3 Episode 1 - Strange Games
    8.2/10(3518 votes)

    #22 - Strange Games

    S3:E1

    A romantic relationship in Istanbul ends badly. Lamb hits the panic button when one of his Slow Horses fails to show up for work.

    Director:Saul Metzstein
    Writer:Will Smith

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  23. Slow Horses Season 5 Episode 4 - Missiles
    8.2/10(2721 votes)

    #23 - Missiles

    S5:E4

    Flyte sets out to find Roddy's girlfriend. The gang is dispatched to two different campaign events to prevent another attack.

    Director:Saul Metzstein
    Writer:Edward Docx

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  24. Slow Horses Season 1 Episode 3 - Bad Tradecraft
    8.1/10(4344 votes)

    #24 - Bad Tradecraft

    S1:E3

    Slough House is the unlikely venue for a secret romance, but events take a dark turn when a dangerous encounter becomes deadly.

    Director:James Hawes
    Writer:Will Smith

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  25. Slow Horses Season 4 Episode 2 - A Stranger Comes to Town
    8.1/10(2902 votes)

    #25 - A Stranger Comes to Town

    S4:E2

    A naive agent makes a discovery about the Westacres bomber. Lamb suspects that David knows more than he's letting on.

    Director:Adam Randall
    Writer:Will Smith

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Best Episodes Summary

"Hello Goodbye" is the best rated episode of "Slow Horses". It scored 8.8/10 based on 3680 votes. Directed by Adam Randall and written by Will Smith, it aired on 10/9/2024. This episode scored 0.1 points higher than the second highest rated, "Cleaning Up".