All 6 Seasons of 'Slow Horses,' Ranked

Published Nov 1, 2026, 8:12 AM EST

Michael Block is a 14 time GLAM Award nominated writer, producer, and host of the podcast Block Talk. Throughout his time in the entertainment industry, he has worked on and off Broadway as a stage manager, written several produced plays, critiqued hundreds of theatrical performances, drag and cabaret shows, and has produced events randing from drag competitoons to variety concerts! 
On Block Talk, he interviews nightlife personalities, covers the wide world of entertainment through features, ranking episodes, and recaps ALL of Drag Race, as well as Dragula and Survivor. He has interviewed hundreds of RuGirls that span the globe at DragCon NYC, DragCon LA, and DragCon UK. 
In his free time, he makes one-of-a-kind jewelry and gift baskets with his mom. He is a proud member of the LGBTQ+ community. 

Sign in to your Collider account

Spoiler Alert: This list contains spoilers for Slow Horses Season 6.The 21st century has gifted TV lovers with some incredible shows, but one from this decade has a proven track record of rivaling everything that came before and after: Slow Horses. Created by Will Smith, the Apple TV spy thriller lifts Mick Herron's book series in extraordinary fashion. The story follows the dysfunctional, cast-off unit of MI5 intelligence agents sent to Slough House. Led by Jackson Lamb (Gary Oldman), the unit does menial administrative grunt work, yet repeatedly stumbles into high-stakes terrorist plots, rogue-state conspiracies, and dirty political games orchestrated by MI5's main headquarters, The Park.

Now six seasons deep, each season uses at least one of Herron's books as its blueprint, crafting a high-octane story in six tightly constructed episodes. The antithesis of clean, polished James Bond-esque spycraft, Slow Horses has brilliantly built its own identity thanks to its fascinating plots and exceptional characters. But which season is the very best so far? It's time to find out! The truth is, each season has a firm reason why it could top the list, but there is a method to the madness.

6 Season 5

Image via Apple TV

Being at the bottom may sound like a bad thing, but the truth of the matter is there are no bad seasons of Slow Horses. It's a show that continues to top itself. For the fifth season, the series adapted the narrative from the events in London Rules. The action follows a coordinated destabilization plot against the UK government and London's mayoral election. A cell of disgruntled Libyan operatives, led by Farouk (Monty Ben), executes a classic British intelligence playbook: a mass shooting in Aberdeen by a radicalized shooter, sabotaging petrol supplies with contaminated fuel to cause vehicle fires and massive gridlock, and bombing a penguin enclosure at the London Zoo to hijack media coverage. The terrorists use Tara (Hiba Bennani) to "honey trap" Roddy Ho (Christopher Chung), exploiting his vanity in order to hack into the MI5 system and blind the agency. Targeting populist leader and mayoral candidate Dennis Gimble (Christopher Villiers) and Mayor Zafar Jaffrey (Nick Mohammed), the chaos leads to the former being accidentally killed by River Cartwright (Jack Lowden) and J.K. Coe (Tom Brooke). With a final standoff standing in the way, Jackson Lamb and the coherent agents of Slough House are tasked with intercepting and neutralizing the threat.

Season 5 had big shoes to fill as its predecessor was literally perfect. In turn, Slow Horses chose to infuse a bit more humor into the action. And it all came in the form of Roddy. For the first time, he's platformed into the story as an active player, allowing him to showcase his humorous side. Chung delivers a standout performance, especially during his brilliant interrogation scene. His smugness brings a much-needed levity. The paint-can incident may be one of the best bits because it was ridiculous and Home Alone-coded, so you simply couldn't believe it resulted in death. But that's why these agents are Joes! By leaning into a lighter workplace-comedy tone, the series proves it can evolve without losing its identity. The season treats chance and political absurdity with sharp wit, tying public panic to anti-intellectual bullies and systemic institutional failure. One of the greatest revelations of the season comes in the confirmation of Lamb's severely burned feet, the result of past torture when he witnessed the murder of his pregnant lover. It's a shocking moment, but it shows how the events in the field have hardened Lamb. This season also watched Diana Taverner (Kristin Scott Thomas) rise to where she dreamt of being, but at what cost? For five seasons, Thomas had her time to shine. The season has memorable moments that elevate it, but overall, it feels a bit more disjointed than the others.

5 Season 1

Image via Apple TV

You always remember your first! Setting the tone and establishing the universe, Slow Horses lifted the story from the titular novel, Slow Horses. The first season introduced the audience to life inside Slough House, the most unglamorous place an MI5 agent can be. The series follows young MI5 agent River Cartwright as he is exiled to Slough House after a disastrous live-fire airport training exercise in which his rival, James "Spider" Webb (Freddie Fox), set him up to fail. Joining the outcasts, led by cynical veteran Jackson Lamb, the agents go rogue when MI5's Second Chair, Diana Taverner, goes rogue herself. British-Pakistani comedian Hassan Ahmed (Antonio Aakeel) is kidnapped by the far-right nationalist group Sons of Albion, which includes an undercover agent sent by Taverner, to help her stage a heroic last-minute rescue to help her curry favor with Pakistan. But when the undercover agent, Alan Black (Sam Hazeldine), is killed, it's Lamb and company to the rescue. Oh, and to simultaneously expose the conspiracy.

Season 1 is exceptional in its own world-building, becoming the alluring series we adore today. It drops so low because the series has only gotten better with nearly every passing season. The season deserves praise for establishing a grounded, tightly plotted anti-spy formula, anchored by Oldman's powerhouse performance. Fans of the book rejoiced as the season faithfully adapted Herron's work. The core story was cleanly elevated, adding extra beats simply for the medium. The initial kidnapping plot and internal MI5 bureaucracy were grounded and immediate, giving viewers something practically tangible to latch onto. While the action is exciting, Slow Horses proved it was also greatly character-driven. Lowden becomes the audience's surrogate: a lovable underdog with a legacy hanging over his head. Oldman and Thomas have impeccable chemistry as both ends of authority. As far as the other agents, they add flavor to the mix, showcasing the unique found family that serves as the heartbeat of the story. By establishing a fast-moving six-episode arc, Slow Horses married feature-film thrills with bingeworthy efficiency.

4 Season 6

For the show's most recent season, Slow Horses abandoned its normal process by adapting not one but two novels into one singular narrative. Drawing on events from both Joe Country and Slough House, Season 6 follows former and current Slough House agents on the run as MI5 Deputy Director General Diana Taverner draws them into a high-stakes conspiracy. Having used stolen Russian government funds to secretly hire a hit squad to assassinate a GRU agent, she uses the identity of Sid Baker (Olivia Cooke) to cover her tracks. Only Sid is very much alive. When the Russian government and media tycoon Damien Cantor (Harry Lloyd) retaliate, former CIA operative-turned-mercenary Frank Harkness (Hugo Weaving) is hired to hunt down and eliminate the Slough House agents. Kicking off with the murder of former Slow Horse Struan Loy (Paul Higgins), Jackson Lamb and company must outmaneuver the hit squad, led by Jane (MyAnna Buring) and Jim (Kyle Soller), before more Joes die. Ending with a shocking cliffhanger that will rattle the story's future, Season 6 is a slick, action-packed thrill ride where the agents become heroes once again.

One of the most thrilling and relentless installments yet, Slow Horses used two narratives to create one tight story. It becomes a highly orchestrated cat-and-mouse chase where no one is safe. The story becomes a taut, breathless masterpiece that moves faster than any of its predecessors. The season is noted for raising real physical stakes, with no one safe. One death is expected, but multiple deaths shake the equilibrium. The mid-season killing of J.K. Coe rattled fans, but ending it with the brutal assassination of Emma Flyte (Ruth Bradley) shook the story to its core. Part of the season's excitement comes from the levity when the agents unite in the safe house. Some of the strongest character moments emerge when they're forced to sit still and stew. Long-time fans were excited by the return of both Sid Baker and Louisa Guy (Rosalind Eleazar), reminding them that no one is truly out unless there's a dead body on screen. As in Season 4, the familiar element raised the stakes, pushing River through the emotional gamut after his grandfather's death and bringing his estranged father back into the fold. The River-Frank final showdown is one of the best-written and best-performed scenes across the entirety of the show. As is the tender moment of mourning when the team gathers to honor Coe. Though the cliffhanger may scare viewers, knowing where Herron's books go next should provide a roadmap for River's fate.

COLLIDERInteractive

Mission live

Movies/Action/Partner Assignment

Collider · Action Heroes Which Action Hero Would Be
Your Perfect Partner? Ten questions · five legends · one partner

Five legends. Five completely different ways of getting out alive: with style, with muscle, with charm, with luck, or with a plan so intricate it probably should not work. Ten questions will reveal which action hero was built to have your back. Choose your channel

Rambo

James Bond

Indiana Jones

John McClane

Ethan Hunt

Find your partner

Mission clock00:10 remaining

Question 01 of 10THE MISSION

01 You are dropped into a dangerous situation with no warning. What do you need most from a partner? The first few seconds tell you everything about who belongs beside you.

ASomeone who already has three contingency plans running and is calmly working through all of them. BSomeone who reads the terrain by instinct and knows exactly how to use it against the enemy. CSomeone who keeps their nerve and their sense of humor while everything falls apart. DSomeone who knows the history of wherever we are and what we are walking into. ESomeone with the right contact, the right cover identity and the right exit already arranged.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:09 remaining

Question 02 of 10TRAVEL STYLE

02 You have to get somewhere dangerous, fast. How do you travel? How you get there is half the mission.

AOn foot through terrain nobody else would attempt. I move where vehicles cannot follow. BOn a motorcycle, a cargo plane, or anything that gets me there before I think too hard about it. CIn something that belongs to someone else: borrowed, stolen, or improvised under fire. DFirst class, with a cover identity and a gadget I will not explain until it is needed. EBy whatever is available. I have driven, flown, and once arrived by camel. The destination matters, not the method.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:08 remaining

Question 03 of 10UNDER PRESSURE

03 You are cornered and outnumbered. What does your ideal partner do? This is when you find out what somebody is really made of.

ADisappears into the environment, comes around behind them, and has it finished before I have moved. BCracks a one-liner, grabs a fire extinguisher or a chair, and improvises something that somehow works. CProduces a gadget designed for this exact scenario and uses it with infuriating precision. DPulls out a whip, a bluff and an archaeological insight that somehow gets us out alive. EShuts it down with maximum efficiency and minimum words. They were already three moves ahead.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:07 remaining

Question 04 of 10DOWNTIME

04 The mission is paused. You have one evening to decompress. What does your partner suggest? Who somebody is when the pressure drops is who they really are.

AThe finest restaurant in the city, a bottle of something expensive, and a conversation that is equal parts brilliant and exhausting. BA local dig site, a museum after hours, or a long story about why that one artifact matters to human civilization. CPizza. Bad TV. Falling asleep halfway through a film neither of you was watching anyway. DA bar with terrible lighting, cold beer, and absolutely no questions about feelings. EA debrief that turns into three hours of contingency planning and somehow becomes the most fun you have had all week.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:06 remaining

Question 05 of 10COMMUNICATION

05 How do you want your partner to communicate mid-mission? Good communication is the difference between a partner and a liability.

APrecise and minimal. Tell me what I need and nothing else. Every word has a cost. BDeadpan and dry. Keeping it light keeps me sharp, even when everything is on fire. CEnthusiastic and slightly chaotic, but always with useful information buried in the noise. DCalm and controlled through an earpiece, with a plan covering every variable I have not thought of yet. EBarely at all. Silence is a language and they speak it fluently.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:05 remaining

Question 06 of 10THE VILLAIN

06 Your enemy is powerful, well-resourced and holds the upper hand. How should your partner go at them? The approach to the enemy defines the partnership.

AInfiltrate the inner circle, learn everything, and take them apart from inside before they know we are there. BStudy the historical pattern. Every villain of this type has a weakness written down somewhere in the past. CGet them talking. The longer they monologue, the more time I have to work out how to beat them. DGo straight at them, directly, using every inch of the terrain. EFind the one thing they have not accounted for, because there is always one, and make sure we are holding it.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:04 remaining

Question 07 of 10LOYALTY

07 It goes badly wrong and you are stranded somewhere hostile. What do you trust your partner to do? Who somebody is when you need them most is the only thing that counts.

ACome in alone, quietly, and get me out before anybody knows they were there. BHave been working the extraction since the moment I vanished. The plan is already running. CCome in loud, come in fast, and worry about the collateral damage later. I would do the same for them. DUse every resource, every contact, and bend every rule until I am out. They do not leave people behind. ECharm their way in somehow, bluff through the hard part, and still manage to look good doing it.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:03 remaining

Question 08 of 10TOOLKIT

08 What does your ideal partner bring that you could not replace? A great partner fills the gap you did not know you had.

ATechnology that should not exist yet and the training to use it in any conditions. BSurvival instinct so refined it borders on supernatural, and the scars that prove it has been tested. CKnowledge of history, language and culture that makes them priceless where force is useless. DThe ability to walk into any room on earth and immediately become the most trusted person in it. EStubbornness that will not accept a situation is hopeless, and the improvisation to back it up.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:02 remaining

Question 09 of 10THE COST

09 Every partnership has a cost. Which of these can you live with? Nobody comes without baggage. The question is whether you can carry it together.

AA partner who never fully switches off, always watching exits and counting threats, even at dinner. BA partner who does the job brilliantly and has the emotional availability of a locked filing cabinet. CA partner who makes everything ten times more complicated than it needs to be, and always comes through. DA partner who gets personally attached to every relic and ruin we pass, which slows the whole thing down. EA partner who was never built for this and knows it, but turns up anyway, every time, unasked.

← Back Keys 1 to 5 or A to E · Enter to advance

Next question

Mission clock00:01 remaining

Question 10 of 10THE LAST STAND

10 Final moment. Everything is on the line. What do you need from your partner right now? The last question is the most honest one.

AOne line. Absolutely dry. Delivered like the world is not ending. Then we move. BNothing said at all. Just a look that means you both already know what happens next. CA plan I do not fully understand that somehow accounts for everything, laid out in thirty seconds. DA piece of historical context that reframes the whole situation and says exactly what to do. ESomebody who steps forward instead of back, because that is who they have always been.

← Back Keys 1 to 5 or A to E · Enter to advance

Reveal my partner

Partner assignedYour perfect partner is

Olive channel locked

Rambo The 1982 original You will never need to ask whether he has your back. You will just know.

Your partner does not talk much, does not need to, and will have counted every threat around you before you finish your first sentence. John Rambo is not a man of plans or politics. He is a force shaped by survival, loyalty and an endurance that no amount of training produces on its own. He does not leave people behind. What you get is the most quietly ferocious partner imaginable, somebody who went through what would have broken anybody else and decided to keep going. Why he is your partner

• He reads ground the way other people read a room.
• He will stand between you and the worst of it without discussing it.
• He says almost nothing, and never the wrong thing.

From the Collider file

• The 1982 original came from David Morrell's 1972 novel, which ends very differently.
• Stallone cut most of his own dialogue in the edit to make the character nearly silent.
• Five films across thirty-seven years, from 1982 to the fifth in 2019.

Says little Leaves nobody Built to endure

Gold channel locked

James Bond Dr. No, 1962 He has survived things that have no business being survivable, and he does it with style.

Your partner arrives perfectly dressed, perfectly briefed, and with a cover story convincing enough that you will need a moment to recall what is true. Bond is the most professionally dangerous person in any room he walks into and the most disarmingly charming, which is the whole point. He works in layers, where nothing is what it looks like and every advantage gets used without apology. You will never be bored. You will occasionally be furious. Why he is your partner

• He is better in the room than he is on paper, and he is excellent on paper.
• He will not explain the plan, and the plan will work.
• He treats charm as a tool, and it is a remarkably effective one.

From the Collider file

• Eon has made twenty-five Bond films since Dr. No in 1962, across six actors.
• Denis Villeneuve is directing the next one for Amazon MGM, which took creative control in 2025.
• The search for the new 007 was still running through 2026, with screen tests under way.

Charm as a tool Always briefed Unbothered

Tan channel locked

Indiana Jones Raiders of the Lost Ark, 1981 A scholar's eye and a brawler's instinct, which is an unusual pairing and a very effective one.

Your partner knows the history, the language, the cultural context, and exactly why the thing everyone else is ignoring is the most important object in the room. Indiana Jones is brilliant, reckless and occasionally impossible, and also one of the most genuinely resourceful people you could have beside you. He hates snakes and gets attached to objects of historical significance, both of which will slow you down at least once. It will not matter. Why he is your partner

• He has read the thing nobody else thought to read.
• He will risk the whole plan for the artifact, and be right about half the time.
• He improvises better than most people prepare.

From the Collider file

• The Cairo swordsman scene was improvised on the day because Harrison Ford had dysentery.
• Raiders was filmed in about 73 days, which was fast even in 1981.
• Dial of Destiny in 2023 was Ford's fifth and last outing, at the age of eighty.

Knows the history Reckless scholar Improviser

Red channel locked

John McClane Die Hard, 1988 His superpower is stubbornness and his contingency plan is improvisation.

Your partner was not supposed to be here. He does not have the right equipment, the right information, or anything resembling the right odds. He has a sarcastic remark and a flat refusal to accept that the situation is as bad as it plainly is. John McClane is the great accidental hero of action cinema, a man whose capacity to absorb more than anybody should and keep going would be alarming if it were not so useful. He will complain the entire time. He will come through. Why he is your partner

• He turns whatever is in the room to his advantage.
• He is funniest when things are at their worst.
• He has never once agreed that it is over.

From the Collider file

• Die Hard came from Roderick Thorp's novel Nothing Lasts Forever, a sequel to a book filmed in 1968.
• Nakatomi Plaza is Fox Plaza, which was the studio's own headquarters at the time.
• Bruce Willis was a television comedy actor then, and a long way down the casting list.

Pure stubbornness Improvises Complains throughout

Blue channel locked

Ethan Hunt Mission: Impossible, 1996 The mission will be impossible. He will complete it anyway.

Your partner has run seventeen scenarios before you finished the briefing, and the one he settled on involves at least two things that should not be physically possible. Ethan Hunt works at the outer edge of human capability, technically and physically, and he brings the same relentless precision to protecting his partners that he brings to dismantling organizations that should not exist. He is not easy to know and he will never tell you everything. He will carry the weight anyway. Why he is your partner

• He takes the risk himself rather than assigning it.
• He is three moves ahead and will not say which three.
• He treats your survival as the actual objective.

From the Collider file

• Cruise hung off the side of an Airbus A400M at a thousand feet for the opening of Rogue Nation.
• The HALO jump in Fallout took 106 takes, filmed at dusk for the light.
• The Final Reckoning in 2025 was the eighth film, and was sold as the last.

Takes the risk Never explains Finishes it

Field report · your top three

1

2

3

↻ Retake the quiz Copied to your clipboard

Mission filed byCOLLIDERCollider.com · The Movies Desk

3 Season 3

Image via Apple TV

For Season 3, Slow Horses adapted Real Tigers as the basis for its action. The story centered on the kidnapping of Slough House administrator Catherine Standish (Saskia Reeves) as part of a larger conspiracy to expose the corruption inside MI5. Under the guise of an AA sponsor, rogue Chieftain Security operative Sean Donovan (Sope Dirisu) captures Standish in order to get his hands on the classified "Grey Books" and a hidden "Footprint" that proves First Desk Ingrid Tearney (Sophie Okonedo) and Home Secretary Peter Judd (Samuel West) covered up the death of MI5 agent Alison Dunn (Katherine Waterston). Because the abduction mimics an authorized security exercise, River Cartwright and the Slow Horses are tricked and caught in the middle of the deadly power struggle. As Deputy Director Diana Taverner orchestrates a political maneuver to expose Tearney and seize control of MI5, River and Louisa Guy become the heroes they were always meant to be.

Season 3 put the action in overdrive. Coming out at a breakneck speed, the mix of action and deep emotional focus on the Slough House team. With the bulk of the action coming within a tight 36-hour window, the tight structure keeps the narrative moving relentlessly without a wasted second. From the explosive Istanbul prologue to the guns-blazing shootout, the season truly rivaled its big-screen counterparts. One of the season's biggest moments furthered Jackson Lamb's backstory when he revealed the truth about Charles Partner (James Faulkner) to Standish, who was loyal to him to a fault. It built immense tension, adding even more color and intrigue to Lamb's own morality as an agent. It was a sobering, unvarnished conversation that shattered any romanticizing of their dirty reality. This season was really the first big moment where Roddy Ho was the gift that would keep on giving. Watching him crash a double-decker bus straight through a building's wall for cover and escape was cinematic gold. Marcus Longridge (Kadiff Kirwan) also steps up in a brilliantly brutal clash with internal affairs and tactical chief Nick Duffy (Chris Reilly) in a close-quarters brawl. Needless to say, action fans got their money's worth in Season 3!

2 Season 2

Image via Apple TV

Using the plot of Dead Lions as the blueprint, Season 2 follows Jackson Lamb and his team of misfits as they uncover a Cold War plot involving Russian sleeper agents. When former agent Dickie Bow (Phil Davis) is poisoned, leaving a hidden phone with the single code word "Cicada," Lamb discovers the sleeper agents are embedded in British society. Min Harper (Dustin Demri-Burns) and Louisa Guy take an off-the-books security gig for a meeting with Russian oligarch Arkady Pashkin (Alec Utgoff), only for Min to be shockingly murdered by the Russian operatives, who stage the assassination as a drunk-driving accident. The deeper the mission gets, the more personal it becomes as the entire operation is orchestrated by Nikolai Katinsky (Rade Šerbedžija), a KGB defector known as the mythical spymaster "Alexander Popov." His goal is to seek revenge on Lamb and David Cartwright (Jonathan Pryce) for the death of Charles Partner.

Earning a rare 100% on Rotten Tomatoes, Season 2 picked up where Season 1 left off and raised the stakes immensely. The season's brilliance lay in expanding the present by exploring the past. Introducing the Cold War secrets and how past actions affected the individuals in our story exposed the depth of the spycraft. Lamb's character is greatly expanded through his rich backstory and hidden loyalty. Further, Season 2 proved how fearless it could be by dealing with real, permanent consequences. Season 2 was truly the first time viewers felt genuine heartbreak when one of the Joes was killed off. While it certainly never gets easier, Slow Horses proved that there was absolutely no safety net attached to this show. Anyone can die at any moment. Especially if Herron prescribed it first. After Min's death, Louisa had a profound arc filled with grief and grit, giving Eleazar a standout performance. The season added newcomers Shirley Dander (Aimee-Ffion Edwards) and Marcus Longridge, establishing that Slough House is a fluid place and any reject can be dropped into the mix. Bringing a perfect mix of espionage twists, crude and dark humor, and a tense final standoff, Season 2 deserved its perfect score.

1 Season 4

Image via Apple TV

It simply does not get better than Season 4. Based on the novel Spook Street, this season centered around a London shopping center bombing and a deep conspiracy tied to the Cartwright family's past. When a suicide bombing at Wester's Mall is carried out by former MI5 operative Robert Winters (Zachary Hart), new Director General Claude Whelan (James Callis) and First Desk Diana Taverner scramble to cover up Winters' connection. Meanwhile, a suffering David Cartwright shoots an assassin, Adam Lockhead (Jack Lowden), sent to target David, believing he accidentally shot his grandson. As River fakes his own death to investigate, he uncovers that the conspiracy is linked to Frank Harkness, a disgraced former special forces and CIA operative who just so happened to be River's father. As Slough House and MI5 unite to clash with Harkness and his lethal operative, Patrice (Tom Wozniczka), a beloved Joe goes down, rattling Slough House forever.

Another perfectly crafted season, Slow Horses simply can't get better than this. Season 4 stands out as a high point of the show due to a powerful mix of deep personal stakes, a chilling new villain, and the emotional weight of aging and family history. This season proved that spycraft is a family business, and the harrowing effects can be lethal. Season 4 delivered exceptional performances from Lowden, Weaving, and Pryce, proving that emotional ties enrich the story. Weaving's take on the villain is almost Bond-level. He provided a chilling calmness that made him utterly terrifying. The story's ability to balance personal and political stakes allowed Slow Horses to move into new territory, as high-tension espionage and deep, existential dread are intimately tied together. Oldman is sublime as Lamb, with his rawest scene with Price, where he must convince David his grandson is dead. It's truly gut-wrenching to watch, especially after River was forced to put him in a care facility. Unfortunately, it's not the most devastating moment of the season, as it saw the brutal death of Marcus. What makes his death hurt so much is that he was truly on the path to improving himself and his family. His dynamic with Shirley Danver was at its peak, which made her arc simply harrowing. But at least we will always have the slapstick comedy of the three-way rescue involving Shirley, Marcus, and Lamb.

Slow Horses

• 

  Jackson Lamb

• 

  River Cartwright