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The Worst Episodes of Slow Horses

Every episode of Slow Horses ranked from worst to best. Explore the Worst Episodes of Slow Horses!

Worst episode
S1E1 Failure's Contagious
7.55,689 votes
Best episode
S4E6 Hello Goodbye
8.83,852 votes
Top season
Season 3
8.4avg
Binge time
1d 4h
36 episodes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons6

All123456

Episode Rankings

  1. #1 Worst Episode
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    Slow Horses Season 1 Episode 1 - Failure's Contagious
    7.5/10(5689 votes)

    S1:E1

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

    Director:James Hawes
    Writer:Will Smith

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  2. Slow Horses Season 1 Episode 2 - Work Drinks
    7.7/10(4724 votes)

    S1:E2

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

    Director:James Hawes
    Writer:Will Smith

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  3. Slow Horses Season 5 Episode 1 - Bad Dates
    7.7/10(3369 votes)

    S5:E1

    A mass shooting rocks London, intensifying a testy mayoral race. Shirley believes one of the Slow Horses was the target of an attempted hit.

    Director:Saul Metzstein
    Writer:Will Smith

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  4. Slow Horses Season 2 Episode 2 - From Upshott with Love
    7.8/10(3536 votes)

    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.

    Director:Jeremy Lovering
    Writer:Morwenna Banks

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  5. Slow Horses Season 1 Episode 4 - Visiting Hours
    7.9/10(4259 votes)

    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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  6. Slow Horses Season 2 Episode 1 - Last Stop
    7.9/10(3857 votes)

    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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  7. Slow Horses Season 5 Episode 2 - Incommunicado
    7.9/10(2840 votes)

    S5:E2

    Lamb intercepts an assassin. Taverner receives a key piece of intel about the Abbotsfield shooting.

    Director:Saul Metzstein
    Writer:Will Smith

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  8. Slow Horses Season 1 Episode 3 - Bad Tradecraft
    8.1/10(4520 votes)

    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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  9. Slow Horses Season 4 Episode 2 - A Stranger Comes to Town
    8.1/10(3033 votes)

    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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  10. Slow Horses Season 4 Episode 3 - Penny for Your Thoughts
    8.1/10(2954 votes)

    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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  11. Slow Horses Season 4 Episode 4 - Returns
    8.1/10(2906 votes)

    S4:E4

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

    Director:Adam Randall
    Writers:Jonny Stockwood, Mark Denton

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  12. Slow Horses Season 5 Episode 3 - Tall Tales
    8.1/10(2846 votes)

    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
    Writer:Sean Gray

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  13. Slow Horses Season 6 Episode 3 - Resurrection
    8.1/10(2175 votes)

    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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  14. Slow Horses Season 1 Episode 6 - Follies
    8.2/10(4378 votes)

    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 1 Episode 5 - Fiasco
    8.2/10(4221 votes)

    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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  16. Slow Horses Season 3 Episode 1 - Strange Games
    8.2/10(3682 votes)

    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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  17. Slow Horses Season 2 Episode 3 - Drinking Games
    8.2/10(3508 votes)

    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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  18. Slow Horses Season 2 Episode 4 - Cicada
    8.2/10(3454 votes)

    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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  19. Slow Horses Season 5 Episode 4 - Missiles
    8.2/10(2892 votes)

    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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  20. Slow Horses Season 6 Episode 1 - Circle of Life
    8.2/10(2683 votes)

    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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  21. Slow Horses Season 6 Episode 2 - Daddy Issues
    8.2/10(2209 votes)

    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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  22. Slow Horses Season 6 Episode 4 - Lost & Found
    8.3/10(2247 votes)

    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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  23. Slow Horses Season 3 Episode 4 - Uninvited Guests
    8.3/10(3277 votes)

    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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  24. Slow Horses Season 3 Episode 2 - Hard Lessons
    8.3/10(3403 votes)

    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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  25. Slow Horses Season 6 Episode 5 - Sayonara
    8.4/10(2105 votes)

    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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Worst Episodes Summary

"Failure's Contagious" is the worst rated episode of Slow Horses. It scored 7.5/10 from 5,689 votes. Directed by James Hawes and written by Will Smith, it aired on April 1, 2022. This episode scored 0.2 points lower than the second lowest rated, "Work Drinks".

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