Slow Horses: Season 3

6 episodes Premiered Nov 29, 2023 Updated Sep 22, 2026

Slow Horses Season 3 continues the overarching saga across 6 episodes.

Previously on Slow Horses

Season 3 Lore Primer

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

⚡ Picks up essential narrative continuity directly following the events of Slow Horses Season 2.
⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.

Slow Horses Season 3 continues the overarching saga across 6 episodes.

Season 3 Episodes

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

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Mytharc (3): Crucial lore & season climaxes

Core (3): Character development & subplots

Side Quest (0): Standalone / filler

S3·E1 Mytharc

Nov 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.

S3·E2 Core

Nov 29, 2023

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

S3·E3 Core

Dec 6, 2023

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

S3·E4 Core

Dec 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.

S3·E5 Mytharc

Dec 20, 2023

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

S3·E6 Mytharc

Dec 27, 2023

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