Apple TV+ is set to enhance its fall lineup with the much-anticipated return of Slow Horses for its fifth season. Premiering on Wednesday, September 24, 2025, the series will continue its tradition of delivering gripping espionage narratives infused with dark humor. Fans can look forward to weekly episodes, culminating in the season finale on October 29.
Since its debut in 2022, Slow Horses has garnered acclaim for its compelling storytelling and standout performances. The series, adapted from Mick Herron’s Slough House novels, offers a fresh perspective on the spy genre by focusing on a group of MI5 agents relegated to the underdog department known as Slough House. Under the leadership of the irascible yet brilliant Jackson Lamb, portrayed by Academy Award winner Gary Oldman, these agents navigate the treacherous waters of espionage to protect national security.
Season 5 promises to delve deeper into the complexities of its characters and the high-stakes world they inhabit. The official synopsis teases a series of enigmatic events that challenge the team:
In season five of ‘Slow Horses,’ everyone is suspicious when resident tech nerd Roddy Ho has a glamorous new girlfriend, but when a series of increasingly bizarre events occur across the city, it falls to the Slow Horses to work out how everything is connected. After all, Lamb knows that in the world of espionage, the London Rules — cover your back — always apply.
The recently released trailer offers a glimpse into the upcoming season’s intensity and intrigue. Viewers can expect a blend of suspense, wit, and the unpredictable twists that have become the show’s hallmark.
A significant development accompanying this season is the departure of Will Smith, the series’ writer and executive producer. Smith has been instrumental in adapting Herron’s novels for the screen, serving as the de facto showrunner since the series’ inception. Reflecting on his decision to step away after Season 5, Smith stated:
Season 5 doesn’t end things by any means… But it concludes certain story arcs that started in Season 1, so it felt like a good moment to hand over the show.
He further elaborated on his desire to maintain the show’s quality and originality:
I didn’t want to lose the sense of fun… There’s always a risk you’ll start to repeat yourself. I want to leave while I’m still delivering my very, very best.
Smith’s departure comes as Apple TV+ has already renewed Slow Horses for a sixth season. Gaby Chiappe and Ben Vanstone are set to take over as lead writers for seasons 6 and 7, respectively, ensuring the series continues to captivate audiences with its unique blend of espionage and dark comedy.
For those new to the series, Slow Horses offers a refreshing take on the spy genre. The narrative centers on a team of British intelligence agents who, due to past mistakes, find themselves assigned to Slough House—a department for MI5’s outcasts. Despite their tarnished reputations, these agents, under Lamb’s unconventional leadership, prove their mettle by tackling complex missions that often intersect with their personal lives.
The show’s success can be attributed to its sharp writing, complex characters, and the dynamic performances of its cast. Gary Oldman’s portrayal of Jackson Lamb has been particularly lauded, bringing depth and nuance to a character who is both abrasive and endearing. The ensemble cast, including Jack Lowden, Kristin Scott Thomas, and others, adds layers to the narrative, making each episode a compelling watch.
As Season 5 approaches, anticipation is high. The series has consistently delivered tight, six-episode seasons that keep viewers on the edge of their seats. With the upcoming season based on another of Herron’s novels, fans can expect a continuation of the intricate plots and character-driven stories that have defined Slow Horses.
In addition to the main storyline, Season 5 is set to explore the evolving dynamics within Slough House. The introduction of new characters and the deepening of existing relationships will add complexity to the narrative. Themes of loyalty, redemption, and the blurred lines between right and wrong are expected to be at the forefront, reflecting the moral ambiguities inherent in the world of espionage.
The production quality of Slow Horses has also been a standout feature. From its cinematography that captures the gritty atmosphere of London to its meticulously crafted scripts, the series offers a viewing experience that is both immersive and thought-provoking. The balance between action sequences and character development ensures that each episode is both thrilling and emotionally resonant.
For viewers looking to catch up before the new season, the first four seasons are available for streaming on Apple TV+. Given the concise nature of each season, it’s an ideal series for binge-watching, offering a satisfying blend of suspense, humor, and drama.
As the premiere date approaches, Slow Horses Season 5 stands as a testament to Apple TV+’s commitment to delivering high-quality, original content. The series’ ability to evolve while staying true to its core themes ensures that it remains a standout in the crowded landscape of television dramas.
