Get ready for more spies, screw-ups, and Jackson Lamb stinkers, as Slow Horses Season 5 is nearly here. Article continues after adHow to watch Slow Horses Season 5 for freeThe good news is that, unlike Netflix, Apple TV+ offers new and eligible users a free trial. Best Buy also offers a two-month free Apple TV+ trial for qualifying purchases made, which you can learn more about here. When is Slow Horses Season 5 out? “When a series of increasingly bizarre events occur across the city, it falls to the Slow Horses to work out how everything is connected.