The TV series "Slow Horses" has 6 episodes per season. This has been consistent for all five seasons released so far. Season 5, which premiered on Apple TV+ on September 24, 2025, also consists of 6 episodes, running weekly until the season finale on October 29, 2025. In total, the first five seasons have 30 episodes (5 seasons × 6 episodes each). The series is based on the "Slough House" novels by Mick Herron and each season adapts one of the books in that series. The show has been renewed for seasons 6 and 7, so more episodes are forthcoming beyond these 30.