Apple TV released the trailer for season six of espionage series “Slow Horses,” which will premiere globally on September 16, 2026.

The six-episode season adapts Mick Herron’s novels “Joe Country” and “Slough House,” running weekly episodes through October 21, 2026.

Gary Oldman returns as Jackson Lamb alongside Kristin Scott Thomas, Jack Lowden, returning cast member Olivia Cooke, and new addition Lenny Rush.

Gaby Chiappe adapted the season for television, with Adam Randall directing and See-Saw Films producing for the streaming platform.