Apple TV+ has unveiled the trailer for season four of its Emmy Award-nominated and BAFTA Award-winning series Slow Horses, starring Academy Award winner Gary Oldman.

Adapted from “Spook Street,” the fourth novel in Mick Herron’s CWA Gold Dagger Award-winning spy series “Slough House,” the six-episode fourth season of “Slow Horses” will premiere globally on Wednesday, September 4.

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 and who frequently find themselves blundering around the smoke and mirrors of the espionage world. The returning ensemble cast also includes Academy Award nominee Kristin Scott Thomas, BAFTA Scotland Award winner Lowden, Saskia Reeves, Rosalind Eleazar, Christopher Chung, Aimee-Ffion Edwards, Kadiff Kirwan and Academy Award nominee Pryce. Screen Actors Guild Award winner Hugo Weaving, BAFTA Award winner Joanna Scanlan, Irish Film & Television Award winner 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 Smith serve as executive producers on the series. Season four is directed by Adam Randall.