There are many reasons why Slow Horses has become one of the most popular series on Apple TV+. The compelling adaptations of Mick Herron's best-selling, grungy, street-level spy novels. The witty dialogue from showrunner Will Smith and his team. And, possibly most of all, the foul-mouthed (and foul-bodied) lead performance from Gary Oldman as Jackson Lamb. All are present and correct in the first trailer for the fourth season of the show, which you can find below.
As Season Four dawns, London at large and the already unstable foundations of those in Slough House – the dumping ground for those in MI5 who have screwed up or otherwise displeased their bosses — are rocked by an explosion at a shopping centre. The event leads to personal secrets leaking everywhere, while at the same time, River Cartwright (Jack Lowden) must deal with his grandfather David's (Jonathan Pryce) crumbling mental faculties.
With a cast that also includes Saskia Reeves, Rosalind Eleazar, Christopher Chung, Aimee-Ffion Edwards, Kadiff Kirwan and Kristin Scott Thomas, Season 4 adds the likes of Hugo Weaving, Joanna Scanlan, Ruth Bradley, Tom Brooke and James Callis. And the show was recently nominated for a welcome nine Emmys, with Oldman in particular up for his fart-happy lead role.
Slow Horses returns on September 4th with the first episode of Season 4.