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.
Where to watch
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Apple TV
see all options Availability data: JustWatch
- Seasons
- 6
- Episodes aired
- 30
- Latest aired
- S05E06
- Total runtime
- 1d
Timeline when each season aired
- Season 1 April 2022 6 episodes
- Season 2 December 2022 6 episodes
- Season 3 November 2023 – December 2023 6 episodes
- Season 4 September 2024 – October 2024 6 episodes
- Season 5 September 2025 – October 2025 6 episodes
- Season 6 September 2026 – October 2026 6 episodes
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S01E01 Failure's Contagious
April 1 · 57min find the promo
Show synopsis
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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S01E02 Work Drinks
April 1 · 52min find the promo
Show synopsis
River and Sid join forces. A misfired gun has dire consequences.
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S01E03 Bad Tradecraft
April 8 · 46min find the promo
Show synopsis
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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S01E04 Visiting Hours
April 15 · 47min find the promo
Show synopsis
Taverner sends the Dogs to hunt down Lamb and the Slow Horses. River holds the secret to saving the gang.
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S01E05 Fiasco
April 22 · 46min find the promo
Show synopsis
The Slow Horses must disappear to avoid capture by MI5. Lamb and River head to The Park to outwit Taverner.
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S01E06 Follies
April 29 · 57min find the promo
Show synopsis
Taverner and the Slow Horses attempt different approaches to locate the kidnappers and Hassan. Ho makes a shocking discovery about Sid.