Slow Horses  (Apple TV+), the Stinker Tailor Soldier Spy anti-Oxbridge espionage hit thriller is not new to many. What’s new is that its fifth season will premiere on September 24, 2025, and seasons 6 and 7 will soon be in the can.  Based on the Mick Herron noels and created by Will Smith, Slow Horses has its tone (or lack thereof) set by Jackson Lamb, played by Gary Oldman, whose myriad other roles included Winston Churchill in the Oscar-winning The Darkest Hour (2017) and the film version of John Le Carré’s Tinker Tailor Soldier Spy (2011).