archytele The Vault
Season guide

Slow Horses: Season 5

6 episodes Premiered Sep 24, 2025 Updated Oct 1, 2026

In season five of the British spy thriller television series, suspicion arises among everyone when resident tech nerd Roddy Ho introduces a glamorous new girlfriend. As a series of increasingly bizarre events transpire across the city, the responsibility falls to the Slow Horses to figure out how everything is connected. Jackson Lamb remains well aware that within the world of espionage, the London Rules, which dicta

Previously on Slow Horses

Season 5 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ The series follows a dysfunctional team of MI5 agents who are known as the Slow Horses.
  • ⚡ The team is led by their obnoxious boss, the notorious Jackson Lamb.
  • ⚡ The agents navigate the smoke and mirrors of the espionage world to defend England from sinister forces.
  • ⚡ The narrative is based on the Slough House novels by Mick Herron.
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Season overview

In season five of the British spy thriller television series, suspicion arises among everyone when resident tech nerd Roddy Ho introduces a glamorous new girlfriend. As a series of increasingly bizarre events transpire across the city, the responsibility falls to the Slow Horses to figure out how everything is connected. Jackson Lamb remains well aware that within the world of espionage, the London Rules, which dictate that one must always cover their back, invariably apply.

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Season 5 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 5 Progress Shield

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Binge Efficiency Engine

Season 5: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

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50%
Mytharc (3): Crucial lore & season climaxes
Core (3): Character development & subplots
Side Quest (0): Standalone / filler
S5·E1 Mytharc

Bad Dates

Sep 24, 2025 · 46 min

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

S5·E2 Core

Incommunicado

Oct 1, 2025 · 48 min

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

S5·E3 Core

Tall Tales

Oct 8, 2025 · 40 min

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

S5·E4 Core

Missiles

Oct 15, 2025 · 40 min

Flyte sets out to find Roddy's girlfriend. The gang is dispatched to two different campaign events to prevent another attack.

S5·E5 Mytharc

Circus

Oct 22, 2025 · 45 min

Lamb debriefs River and Coe. Roddy is pulled in to help decipher a piece of code as the destabilization strategy nears its final stage.

S5·E6 Mytharc

Scars

Oct 29, 2025 · 52 min

It's up to the Slow Horses to stop Farouk's team from completing its mission in a final act of mass carnage.

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