Slow Horses, the darkly humorous British spy series based on the novels by Mick Herron, returns for a fifth season on Apple TV+ from September 24, 2025. Starring Gary Oldman, Oscar-winner for Dark Hours, the series once again delves into the murky world of MI5 through the team at Slough House, a department for fallen intelligence officers. The platform has already confirmed that the series will continue with a season 6 and a season 7, proof of its success and longevity.
The new season promises a cocktail of thriller and drama, where pretense and power struggles jeopardize national security as much as the loyalty of Slough House's spies.
Slow Horses season 5 will be available on Apple TV+ from September 24, 2025. Seasons 6 and 7 have already been made official by the platform.
Synopsis: A team of British secret agents sidelined by MI5 attempt to redeem themselves under the direction of Jackson Lamb, a leader as brilliant as he is irascible. Between black humor, espionage and moral dilemmas, they must defend the UK against its enemies.
A team of British spies relegated to MI5's basement, Slough House, end their careers due to past mistakes, under the leadership of the brilliant but angry Jackson Lamb.
Jackson Lamb's fallen spies join forces to foil the plans of a double agent, while one of their own is kidnapped.
A love affair in Istanbul threatens to expose MI5's closely guarded secrets in London. When Jackson Lamb and his crack team get involved, they find themselves at the heart of a conspiracy that not only endangers Slough House, but also MI5 itself.
An explosion, leaking personal secrets, shakes the already shaky foundations of Slough House.
As Jackson Lamb, Gary Oldman plays a disillusioned but formidably effective leader who guides - or bullies - his subordinates. He is surrounded by established actors such as Jack Lowden, who plays agent River Cartwright, and Kristin Scott Thomas, as Diana Taverner, the central figure of MI5. This first-rate cast helps give the series a strong identity, where the acting accentuates the ambivalence of the characters.
The series is aimed at fans of spy thrillers and political stories, with a cynical tone reminiscent of works such asTinker Tailor Soldier Spy and The Night Manager. Its balance of dramatic tension and dark humor also appeals to a wider audience, curious to discover the fictional yet realistic behind-the-scenes of the British secret service. Fans of Gary Oldman will find a striking performance here, supported by dense writing and a universe where every mistake can prove fatal.
Adapted from the novels by Mick Herron, Slow Horses has established itself as a must-see series in the Apple TV+ catalog. Season 5, scheduled for release on September 24, 2025, promises to extend this immersion into the world of MI5, with even more suspense, manipulation and pretense. Starring Gary Oldman, it remains a must-see for fans of spy series and psychological dramas.
This article is based on information available online; we have not yet viewed the film or series mentioned.
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