“Slow Horses” season 5 is officially my most anticipated show of 2025. Yes, technically that release date isn’t confirmed but given there’s already a trailer for season 5, I feel confident that we’ll get new episodes next year.
This Gary Oldman spy thriller show remains an incredible hit for Apple TV Plus. Seasons 1 and 2 were beloved by fans and critics alike and season 3 was my pick for the best TV show we watched in 2023. Season 4 wasn’t too far off the mark in quality either — if it wasn’t for generational shows like “Shogun” and “Industry” it’d have retained its crown for another year.
Now that season 4 is over, you’ll want to know what to expect in season 5. So here’s everything we know about “Slow Horses” season 5, including the show’s possible release date, the season 5 trailer, cast and plot speculation for the upcoming season.
‘Slow Horses’ season 5 release date speculation
Apple had already greenlit a fifth season of “Slow Horses” before the end of season 4. In fact, season 5 and season 6 have been officially approved by Apple (h/t Deadline).
For fans of the show, this isn’t a surprise. The show is known for ending each season with a trailer for the following season, and sure enough season 4 ended with a season 5 trailer.
Furthermore, showrunner Will Smith has commented on the show’s production schedule in the past, saying that typically there are three seasons of “Slow Horses” being worked on at any time. Typically, one is being written, another is being shot and a third is in post-production at any given point.
Given that season 5 has now wrapped filming according to Film Updates on Twitter (X), it seems like everything is currently on schedule. We predict “Slow Horses” season 5 will premiere in early September 2025 on Apple TV Plus.
‘Slow Horses’ season 5 trailer
Spoiler alert: Spoilers for seasons 1-5 of “Slow Horses” beyond this point
If you’ve seen “Slow Horses” season 4, then you’ll have already seen the lone trailer we have for season 5 so far. But just in case you need a refresher, here it is below.
‘Slow Horses’ season 5 plot speculation
Season 5 of “Slow Horses” has been confirmed to be an adaptation of Mick Herron’s 2018 novel “London Rules.” This is the fifth novel and sixth story in the “Slough House” series and is the sequel to “Spook Street,” which was the basis for “Slow Horses” season 4.
I’m not going to go into full spoilers here — if you want to know everything that could happen, do some spy work and read the book for yourself. But here’s a brief synopsis of what to expect in season 5.
