Apple TV's Slow Horses Will Change Its Adaptation Format in Season 6

Slow Horses has produced five seasons and earned critical acclaim, including 14 Emmy nominations and two wins. Season 6 is confirmed for Wednesday, September 16, and will change the show’s adaptation format. The series has adapted one Mick Herron novel per season since Apple TV brought the 2010 novel Slow Horses to the screen in 2022.

It follows a team of MI5 rejects banished to Slough House and led by the irascible Jackson Lamb (Gary Oldman); the story begins when River Cartwright (Jack Lowden) is reassigned there after a failed training exercise. Each season has managed to condense one novel into six episodes, but Season 6 will adapt two books—Joe Country (2019) and Slough House (2021)—within that framework.

Joe Country examines Diana Taverner’s (Kristin Scott Thomas) fraught position as First Desk, while Lamb tracks the man responsible for killing one of his agents and directs the Slow Horses toward revenge; the season also tackles a scheme led by Taverner that puts the team in greater danger.

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