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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!

The Best Episodes of Slow Horses

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...

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  1. 8.8/10(2.2k votes)

    #1 - Hello Goodbye

    S4:E6

    Impossible decisions are faced and sacrifices are made.

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    Director:Adam Randall
    Writer:Will Smith
  2. 8.7/10(2.2k votes)

    #2 - Cleaning Up

    S3:E5

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

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  3. 8.6/10(2.3k votes)

    #3 - Boardroom Politics

    S2:E5

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

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  4. 8.6/10(2.4k votes)

    #4 - Old Scores

    S2:E6

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

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  5. 8.6/10(2.3k votes)

    #5 - Negotiating with Tigers

    S3:E3

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

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    Writer:Will Smith
  6. 8.6/10(2.5k votes)

    #6 - Footprints

    S3:E6

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

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    Writer:Will Smith
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    The 20 WORST Episodes of Slow Horses

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  8. 8.6/10(1.9k votes)

    #7 - Grave Danger

    S4:E5

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

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  9. 8.4/10(2.2k votes)

    #8 - 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.

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    Director:Adam Randall
    Writer:Will Smith
  10. 8.3/10(2.1k votes)

    #9 - Hard Lessons

    S3:E2

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

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    Writer:Will Smith
  11. 8.3/10(2.0k votes)

    #10 - 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.

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  12. 8.2/10(2.7k votes)

    #11 - Fiasco

    S1:E5

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

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  13. 8.2/10(2.8k votes)

    #12 - Follies

    S1:E6

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

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    Director:James Hawes
    Writer:Will Smith
  14. 8.2/10(2.2k votes)

    #13 - 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.

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  15. 8.2/10(2.2k votes)

    #14 - 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.

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  16. 8.2/10(2.3k votes)

    #15 - 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.

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    Writer:Will Smith
  17. 8.1/10(2.9k votes)

    #16 - 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.

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    Director:James Hawes
    Writer:Will Smith
  18. 8.1/10(1.8k votes)

    #17 - 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.

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    Director:Adam Randall
    Writer:Will Smith
  19. 8.1/10(1.7k votes)

    #18 - Penny for Your Thoughts

    S4:E3

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

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  20. 8.1/10(1.7k votes)

    #19 - Returns

    S4:E4

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

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  21. 8.0/10(2.7k votes)

    #20 - Visiting Hours

    S1:E4

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

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  22. 8.0/10(2.4k votes)

    #21 - 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.

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  23. 7.9/10(2.2k votes)

    #22 - From Upshott with Love

    S2:E2

    Lamb liaises with a Russian defector who may hold a clue to sleeper agents. River is on the trail of a ruthless assassin.

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  24. 7.7/10(3.1k votes)

    #23 - Work Drinks

    S1:E2

    River and Sid join forces. A misfired gun has dire consequences.

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    Director:James Hawes
    Writer:Will Smith
  25. 7.5/10(3.5k votes)

    #24 - Failure’s Contagious

    S1:E1

    River Cartwright is ousted from MI5 and finds himself in a place worse than purgatory: Slough House, dumping ground for failed spies.

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    Director:James Hawes
    Writer:Will Smith

Best Episodes Summary

"Hello Goodbye" is the best rated episode of "Slow Horses". It scored 8.8/10 based on 2242 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".