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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 0h•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(3024 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(2809 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:Mark Denton, Jonny Stockwood

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  3. Slow Horses Season 2 Episode 5 - Boardroom Politics
    8.6/10(2821 votes)

    #3 - 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:Mark Denton, Jonny Stockwood

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  4. Slow Horses Season 2 Episode 6 - Old Scores
    8.6/10(3015 votes)

    #4 - 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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  5. Slow Horses Season 3 Episode 3 - Negotiating with Tigers
    8.6/10(2831 votes)

    #5 - 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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  6. Slow Horses Season 3 Episode 6 - Footprints
    8.6/10(3081 votes)

    #6 - 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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    The 20 WORST Episodes of Slow Horses

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  7. Slow Horses Season 4 Episode 5 - Grave Danger
    8.6/10(2488 votes)

    #7 - Grave Danger

    S4:E5

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

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

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  8. Slow Horses Season 5 Episode 6 - Scars
    8.5/10(2162 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
    Writers:Will Smith, Mick Herron

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  9. Slow Horses Season 4 Episode 1 - Identity Theft
    8.4/10(2809 votes)

    #9 - 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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  10. Slow Horses Season 5 Episode 5 - Circus
    8.4/10(1939 votes)

    #10 - 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
    Writers:Will Smith, Mick Herron

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  11. Slow Horses Season 3 Episode 2 - Hard Lessons
    8.3/10(2670 votes)

    #11 - 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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  12. Slow Horses Season 3 Episode 4 - Uninvited Guests
    8.3/10(2556 votes)

    #12 - 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:Mark Denton, Jonny Stockwood

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  13. Slow Horses Season 1 Episode 5 - Fiasco
    8.2/10(3320 votes)

    #13 - 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:Mark Denton, Jonny Stockwood

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  14. Slow Horses Season 1 Episode 6 - Follies
    8.2/10(3431 votes)

    #14 - 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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  15. Slow Horses Season 2 Episode 3 - Drinking Games
    8.2/10(2763 votes)

    #15 - 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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  16. Slow Horses Season 2 Episode 4 - Cicada
    8.2/10(2716 votes)

    #16 - 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:Mark Denton, Jonny Stockwood

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  17. Slow Horses Season 3 Episode 1 - Strange Games
    8.2/10(2890 votes)

    #17 - 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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  18. Slow Horses Season 5 Episode 4 - Missiles
    8.2/10(1922 votes)

    #18 - 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
    Writers:Mick Herron, Edward Docx

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  19. Slow Horses Season 1 Episode 3 - Bad Tradecraft
    8.1/10(3598 votes)

    #19 - 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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  20. Slow Horses Season 4 Episode 2 - A Stranger Comes to Town
    8.1/10(2339 votes)

    #20 - 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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  21. Slow Horses Season 4 Episode 3 - Penny for Your Thoughts
    8.1/10(2256 votes)

    #21 - Penny for Your Thoughts

    S4:E3

    River is trapped in France. Back at Slough House, the Dogs have come for Lamb.

    Director:Adam Randall
    Writer:Morwenna Banks

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  22. Slow Horses Season 4 Episode 4 - Returns
    8.1/10(2211 votes)

    #22 - Returns

    S4:E4

    Taverner is desperate to hide dangerous secrets. River seeks answers at his grandfather's house.

    Director:Adam Randall
    Writers:Mark Denton, Jonny Stockwood

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  23. Slow Horses Season 5 Episode 3 - Tall Tales
    8.1/10(1908 votes)

    #23 - Tall Tales

    S5:E3

    An act of sabotage grinds London to a halt. Taverner interrogates Roddy. Coe is convinced a destabilization strategy is at play.

    Director:Saul Metzstein
    Writers:Mick Herron, Sean Gray

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  24. Slow Horses Season 1 Episode 4 - Visiting Hours
    8.0/10(3360 votes)

    #24 - Visiting Hours

    S1:E4

    Taverner sends the Dogs to hunt down Lamb and the Slow Horses. River holds the secret to saving the gang.

    Director:James Hawes
    Writer:Morwenna Banks

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  25. Slow Horses Season 2 Episode 1 - Last Stop
    7.9/10(3019 votes)

    #25 - Last Stop

    S2:E1

    Jackson Lamb is on high alert after a former spy is found dead. Min and Louisa are tempted by an offer from outside Slough House.

    Director:Jeremy Lovering
    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 3024 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".