
Slow Horses season 5: key information
- Will arrive on September 24
- Teaser trailer revealed after season 4 finale
- Main cast set to return
- Plot to follow Mick Herron’s ‘London Rules’ novel
- Already renewed for season 6 and 7
- Potential Slough House spin-off in the works
Slow Horses season 5 will arrive on Apple TV+ on September 24. In true Slow Horses fashion though, the gritty spy thriller hasn't made us wait too long between seasons.