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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!

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...
Genres:CrimeDramaComedy
Network:Apple TV+

Worst Episodes Summary

"Failure’s Contagious" is the worst rated episode of "Slow Horses". It scored 7.5/10 based on 2960 votes. Directed by James Hawes and written by Will Smith, it aired on 4/1/2022. This episode scored 0.2 points lower than the second lowest rated, "Work Drinks".

  • Failure’s Contagious
    7.5/102,960 votes
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    #1 - Failure’s Contagious

    Season 1 Episode 1 - Aired 4/1/2022

    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

  • Work Drinks
    7.7/102,584 votes
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    #2 - Work Drinks

    Season 1 Episode 2 - Aired 4/1/2022

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

    Director: James Hawes

    Writer: Will Smith

  • From Upshott with Love
    7.9/101,834 votes
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    #3 - From Upshott with Love

    Season 2 Episode 2 - Aired 12/2/2022

    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

  • Visiting Hours
    8.0/102,271 votes
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    #4 - Visiting Hours

    Season 1 Episode 4 - Aired 4/15/2022

    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

  • Last Stop
    8.0/102,020 votes
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    #5 - Last Stop

    Season 2 Episode 1 - Aired 12/2/2022

    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

  • Bad Tradecraft
    8.1/102,453 votes
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    #6 - Bad Tradecraft

    Season 1 Episode 3 - Aired 4/8/2022

    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

  • Fiasco
    8.2/102,235 votes
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    #7 - Fiasco

    Season 1 Episode 5 - Aired 4/22/2022

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

    Director: James Hawes

    Writer: Mark Denton, Jonny Stockwood

  • Follies
    8.2/102,316 votes
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    #8 - Follies

    Season 1 Episode 6 - Aired 4/29/2022

    Taverner and the Slow Horses attempt different approaches to locate the kidnappers and Hassan. Ho makes a shocking discovery about Sid. ref: https://seasondate.org/en/serials/2022-slow-horses

    Director: James Hawes

    Writer: Will Smith

  • Drinking Games
    8.2/101,840 votes
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    #9 - Drinking Games

    Season 2 Episode 3 - Aired 12/9/2022

    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

  • Cicada
    8.2/101,806 votes
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    #10 - Cicada

    Season 2 Episode 4 - Aired 12/16/2022

    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

    Writer: Mark Denton, Jonny Stockwood

  • Strange Games
    8.2/101,927 votes
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    #11 - Strange Games

    Season 3 Episode 1 - Aired 11/29/2023

    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

  • A Stranger Comes to Town
    8.2/101,172 votes
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    #12 - A Stranger Comes to Town

    Season 4 Episode 2 - Aired 9/11/2024

    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

  • Penny for Your Thoughts
    8.2/101,129 votes
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    #13 - Penny for Your Thoughts

    Season 4 Episode 3 - Aired 9/18/2024

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

    Director: Adam Randall

    Writer: Morwenna Banks

  • Returns
    8.2/101,063 votes
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    #14 - Returns

    Season 4 Episode 4 - Aired 9/25/2024

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

    Director: Adam Randall

    Writer: Mark Denton, Jonny Stockwood

  • Hard Lessons
    8.3/101,743 votes
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    #15 - Hard Lessons

    Season 3 Episode 2 - Aired 11/29/2023

    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

  • Uninvited Guests
    8.3/101,636 votes
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    #16 - Uninvited Guests

    Season 3 Episode 4 - Aired 12/13/2023

    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

    Writer: Mark Denton, Jonny Stockwood

  • Identity Theft
    8.5/101,527 votes
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    #17 - Identity Theft

    Season 4 Episode 1 - Aired 9/4/2024

    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

  • Boardroom Politics
    8.6/101,877 votes
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    #18 - Boardroom Politics

    Season 2 Episode 5 - Aired 12/23/2022

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

    Director: Jeremy Lovering

    Writer: Mark Denton, Jonny Stockwood

  • Old Scores
    8.6/102,008 votes
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    #19 - Old Scores

    Season 2 Episode 6 - Aired 12/30/2022

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

    Director: Jeremy Lovering

    Writer: Will Smith

  • Footprints
    8.6/101,980 votes
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    #20 - Footprints

    Season 3 Episode 6 - Aired 12/27/2023

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

    Director: Saul Metzstein

    Writer: Will Smith

  • Grave Danger
    8.6/101,257 votes
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    #21 - Grave Danger

    Season 4 Episode 5 - Aired 10/2/2024

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

    Director: Adam Randall

    Writer: Will Smith, Mark Denton, Jonny Stockwood

  • Negotiating with Tigers
    8.7/101,869 votes
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    #22 - Negotiating with Tigers

    Season 3 Episode 3 - Aired 12/6/2023

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

    Director: Saul Metzstein

    Writer: Will Smith

  • Cleaning Up
    8.7/101,794 votes
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    #23 - Cleaning Up

    Season 3 Episode 5 - Aired 12/20/2023

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

    Director: Saul Metzstein

    Writer: Mark Denton, Jonny Stockwood

  • Hello Goodbye
    8.8/101,462 votes
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    #24 - Hello Goodbye

    Season 4 Episode 6 - Aired 10/9/2024

    Impossible decisions are faced and sacrifices are made.

    Director: Adam Randall

    Writer: Will Smith