Apple TV+ has unveiled the trailer for season four of its globally celebrated, Emmy Award-nominated and BAFTA Award-winning series, “Slow Horses,” starring Gary Oldman. Adapted from SPOOK STREET, the fourth novel in the CWA Gold Dagger Award-winning Mick Herron’s “Slough House” series, the six-episode fourth season of “Slow Horses” will premiere globally on Wednesday, September 4 with the first episode, followed by one new episode weekly, every Wednesday through October 9.

“Slow Horses” follows a dysfunctional team of British intelligence agents who serve in a dumping ground department of MI5 known un-affectionately as Slough House. Season four opens with a bombing that detonates personal secrets, rocking the already unstable foundations of Slough House. 

The espionage drama continues to receive praise and accolades heading into its fourth season. “Slow Horses” season three recently scored nine Emmy Award nominations for its widely acclaimed third season, including Outstanding Drama Series and acting nominations for Gary Oldman (Outstanding Lead Actor in a Drama Series), Jack Lowden (Outstanding Supporting Actor in a Drama Series) and Jonathan Pryce (Outstanding Guest Actor in a Drama Series).

Oldman stars as Jackson Lamb, the brilliant but misanthropic leader of the spies, who end up in Slough House due to their career-ending mistakes as they frequently find themselves blundering around the smoke and mirrors of the espionage world. The returning ensemble cast also includes Kristin Scott Thomas, Jack Lowden, Saskia Reeves, Rosalind Eleazar, Christopher Chung, Aimee-Ffion Edwards, Kadiff Kirwan and Jonathan Pryce. Hugo Weaving, Joanna Scanlan, Ruth Bradley, Tom Brooke and James Callis join “Slow Horses” in season four.

“Slow Horses” is produced for Apple TV+ by See-Saw Films and adapted for television by Will Smith (“Veep”). Jamie Laurenson, Hakan Kousetta, Iain Canning, Emile Sherman, Jane Robertson, Julian Stevens, Douglas Urbanski, Gail Mutrux, Graham Yost and Will Smith serve as executive producers on the series. Season four is directed by Adam Randall.

Fans can catch up on the first three seasons of “Slow Horses” now streaming globally on Apple TV+. Additionally, Apple TV+ previously announced a fifth season set to be adapted from the fifth novel, “London Rules.”