Slow Horses Season 5 (2025): The Chaos Continues
Season 5 of Slow Horses returns with all the grit, tension, and dark humor fans have come to expect. Based on Mick Herron’s novel London Rules, the new season finds the disgraced agents of Slough House once again caught in the middle of a high-stakes intelligence disaster — one that, of course, no one wants them involved in.
Jackson Lamb, still foul-mouthed and disheveled, remains the reluctant leader of the team. Gary Oldman’s performance is as biting and brilliant as ever, delivering insults with the same precision as the best MI5 takedown. The team — bruised by betrayals, loss, and bureaucracy — now faces a new series of coordinated terrorist attacks across London. And naturally, no one in power wants the Slough House crew anywhere near it.
But being underestimated is their greatest weapon.
This season brings a spotlight to Roddy Ho, whose new romantic interest raises more than a few red flags. River Cartwright finds himself spiraling deeper into emotional territory, while Louisa Guy struggles to hold the group together through the wreckage. Amid all the dysfunction, one thing remains clear: they might be slow, but they always finish the job.
Season 5 balances tension and wit with greater sharpness than ever. The stakes are real. The threat is personal. And the system is still as broken as ever. Yet somehow, these misfits keep finding a way to do what the polished agents can’t — survive.
With more seasons already in production, it’s clear that Slow Horses isn’t slowing down. Season 5 proves that in a world of polished liars and backroom deals, sometimes it takes the losers to win the fight.
