After a botched and publicly embarrassing training mission, British MI5 agent River Cartwright is exiled to Slough House, an administrative purgatory for service rejects. Known as slow horses, Cartwright and his fellow employees must endure dull, paper pushing tasks and their miserable boss, Jackson Lamb, who expects them to quit out of boredom and frustration. Life in Slough House is defined by drudgery until the slow horses become entangled in a dangerous gambit by Regent's Park.
Slow Horses was renewed for Season 4
Apple TV+ renewed the series on Thursday 2nd June 2022