Slow Horses Season 6: A Flawless Victory on Rotten Tomatoes Beyond the Desk: The Inevitable Field Returns of MI5's 'Slow Horses' The Misfits Are Back: 'Slow Horses' Season 5 Trailer Unveils a Deepening Conspiracy Slough House Returns: Gary Oldman's Disgraced Spies Face New Threats in Slow Horses Season 5