Apple TV+ Sets September Premiere for 'Slow Horses' Season 6

Apple TV+ has officially announced that the sixth season of its critically acclaimed espionage drama, 'Slow Horses,' will debut on September 16, 2026. The upcoming installment will consist of six episodes, following a weekly release schedule every Wednesday, with the season finale slated for October 21. The series continues to chronicle the exploits of the disgraced MI5 agents stationed at Slough House under the cynical leadership of Jackson Lamb, portrayed by Gary Oldman.

This announcement arrives alongside a first look at new cast member Lenny Rush, who joins the ensemble as the team faces fresh challenges. The show’s consistent release cadence and sustained popularity have solidified its position as a cornerstone of Apple TV+’s scripted content strategy. By maintaining a reliable schedule, the platform continues to foster strong audience retention for its flagship spy thriller.

The return of 'Slow Horses' is significant for the streaming landscape, as the series has become a benchmark for high-quality, character-driven spy fiction. Its ability to balance dark humor with tense, grounded espionage has earned it a dedicated following and critical prestige. As the series enters its sixth season, the continued investment from Apple underscores the value of long-form, serialized storytelling in an increasingly competitive streaming market.