Betrayal cuts deeper than ever. This time, there are no rules.

Apple TV+ is set to premiere the highly anticipated Slow Horses Season 5 on September 24, 2025. Returning with six tautly woven episodes, the series once again delivers a riveting blend of espionage, dark wit, and high-stakes drama. The first two episodes will be released on launch day, setting the tone for a thrilling ride.

Following the explosive aftermath of Spook Street, the disgraced MI5 agents of Slough House are thrust into their most perilous mission yet. Under the sardonic leadership of Jackson Lamb (Gary Oldman), and joined by River Cartwright (Jack Lowden) and Diana Taverner (Kristin Scott Thomas), the team must face threats that cut to the heart of British intelligence.

Based on London Rules, the fifth novel in Mick Herron’s acclaimed spy series, this season unearths a conspiracy embedded deep within the core of MI5. As political schemes collide with personal grudges, the Slow Horses must navigate a dangerous landscape of deception, surveillance, and betrayal—dodging both bullets and bureaucrats along the way.

💥 Expect razor-sharp dialogue, expertly crafted spycraft, and the signature mix of tension and pitch-black humor that has cemented Slow Horses as one of the genre’s finest modern thrillers.