When you’re already dying to fulfill the unfortunate River, the annoying Roddy, the depressive Catherine, and the repulsive Jackson Lamb once more, we’ve excellent news: the official trailer for season 5 of Sluggish Horses has arrived.
The espionage collection, based mostly on Mick Herron’s collection of novels, is without doubt one of the most enjoyable productions on Apple TV+. The British present gives an actual feast for spy followers, fairly totally different from the bombastic adventures of James Bond or Ethan Hunt.
Apple’s collection combines participating puzzles with black humour and charismatic characters. The chief is the misanthropic, slobby, ruthless and extremely efficient Lamb, performed by the incomparable Gary Oldman.
Right here’s all it’s good to know concerning the fifth instalment of Sluggish Horses.
When will Sluggish Horses season 5 be launched?
The fifth instalment of the espionage collection will debut on Apple TV+ on Wednesday, 24 September 2025. The season consists of six epispdes that may premiere on the service weekly.
An Apple TV+ month-to-month subscription prices $12.99 per 30 days within the US and £9.99 per 30 days within the UK.

Apple TV+
What is going to the plot of Sluggish Horses season 5 be?
Spoilers for season 4 beneath.
The present’s new season might be based mostly on the fifth guide by Mick Herron, London Guidelines.
The official synopsis for season 5 reads:
In season 5 of Sluggish Horses, everyone seems to be suspicious when resident tech nerd Roddy Ho has a glamorous new girlfriend, however when a collection of more and more weird occasions happen throughout town, it falls to the Sluggish Horses to work out how all the pieces is related. In any case, Lamb is aware of that in the world of espionage, the London Guidelines — cowl your again — all the time apply.
Within the novel, a collection of assassinations are but once more happening in London. Claude Whelan, the First Desk, alongside along with his deputy and rival, Diana Taverner, are attempting to convey the scenario below management… but it surely’s proving extraordinarily tough.
The Slough Home crew will get into hassle as ordinary. River and the opposite brokers need to face not solely their work but in addition private issues and traumas.

Apple TV+
Within the new instalment, River will probably wrestle with regret over putting his dementia-suffering grandfather in a nursing house. One other problem that’s more likely to hang-out him is the reality about his dad and mom. Maybe within the fifth season, we are going to lastly meet River’s mom, who hasn’t stored in contact along with her son and her father for years.
The ending of season 4 urged that River may kind a sure bond with Jackson Lamb. Nevertheless, given the angle of the pinnacle of Slough Home, this can be a false hope. As an alternative, the true help for River could also be Louisa, with whom he started to befriend firstly of season 4.
Regret will most likely additionally hang-out Shirley – the drug-addicted agent must take care of her grief over Marcus’ demise.
We may additionally be taught extra concerning the new member of Slough Home – the silent and very disturbing JK, who confirmed his very darkish facet within the season 4 finale. We hope that the present’s creators will give us extra scenes with this mysterious character.
Is there a trailer for Sluggish Horses season 5?
Sure! Right here’s the official trailer for the fifth season:
You can even watch a brief teaser, which was unveiled after the ultimate episode of season 4.
Who’re the forged and crew of Sluggish Horses season 5?
Within the fifth season of the espionage collection, we are going to see the return of a lot of the characters:
- Gary Oldman – Jackson Lamb
- Jack Lowden – River Cartwright
- Saskia Reeves – Catherine Standish
- Rosalind Eleazar – Louisa Man
- Aimée-Ffion Edwards – Shirley Dander
- Christopher Chung – Roddy Ho
- Tom Brooke – JK Coe, the brand new member of the Slough Home
- Ruth Bradley – Emma Flyte, the brand new Head of the Canines
- James Callis – Claude Whelan, the brand new First Desk
- Kristin Scott Thomas – Diana Taverner, Director-Basic of MI5
- Jonathan Pryce – David Cartwright, River’s grandpa
Nick Mohammed, recognized from portraying Nathan Shelley in Ted Lasso, will guest-star in season 5.
Sadly, in season 5, we received’t see Kadiff Kirwan as Marcus Longridge – the gambling-addicted agent met a tragic finish within the season 4 finale.
It’s unclear whether or not we are going to see Joanna Scanlan as Moira Tregorian within the new episodes – within the season 4 finale, the clerk cemented her return to The Park.
Whether or not Hugo Weaving will return to the collection as Frank Harkness additionally stays a thriller. The later destiny of this ex-spy and paid murderer hasn’t been absolutely defined. In season 4, he was arrested by MI5, however he was sure of his launch. As author Will Smith teases, Harkness reappears within the books, so there’s an opportunity for his comeback within the Apple TV+ collection.
Will there be season 6 of Sluggish Horses?
Sure! Apple has already ordered the sixth instalment of the present. The next season might be based mostly on Herron’s sixth novel from the Slough Home collection, Joe Nation.

