Slow Horses

Synopsis

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.

First Air Date: 2022-04-01

Last Air Date: 2025-10-29

Number of Seasons: 5

Number of Episodes: 30

Networks: Apple TV

View Technical Specifications on IMDb

Top Cast

Gary Oldman as Jackson Lamb
Jack Lowden as River Cartwright
Kristin Scott Thomas as Diana Taverner
Saskia Reeves as Catherine Standish
Christopher Chung as Roddy Ho
Rosalind Eleazar as Louisa Guy
Aimee-Ffion Edwards as Shirley Dander
Kadiff Kirwan as Marcus Longridge
Jonathan Pryce as David Cartwright
Chris Reilly as Nick Duffy

Seasons

Season 1 (2022) - (6 Episodes)

Season 2 (2022) - (6 Episodes)

Season 3 (2023) - (6 Episodes)

Season 4 (2024) - (6 Episodes)

Season 5 (2025) - (6 Episodes)

Season 1 (2022)

When a young man is kidnapped and threatened with beheading, the slow horses find themselves unexpectedly embroiled in a dangerous case that forces them to prove their worth.

Episodes:

Ep. 1: Failure's Contagious (2022-04-01)

River Cartwright is ousted from MI5 and finds himself in a place worse than purgatory: Slough House, dumping ground for failed spies.
Ep. 2: Work Drinks (2022-04-01)

River and Sid join forces. A misfired gun has dire consequences.
Ep. 3: Bad Tradecraft (2022-04-08)

Slough House is the unlikely venue for a secret romance, but events take a dark turn when a dangerous encounter becomes deadly.
Ep. 4: Visiting Hours (2022-04-15)

Taverner sends the Dogs to hunt down Lamb and the Slow Horses. River holds the secret to saving the gang.
Ep. 5: Fiasco (2022-04-22)

The Slow Horses must disappear to avoid capture by MI5. Lamb and River head to The Park to outwit Taverner.
Ep. 6: Follies (2022-04-29)

Taverner and the Slow Horses attempt different approaches to locate the kidnappers and Hassan. Ho makes a shocking discovery about Sid.