A naive agent makes a discovery about the Westacres bomber. Lamb suspects that David knows more than he’s letting on.

River is trapped in France. Back at Slough House, the Dogs have come for Lamb.

Taverner is desperate to hide dangerous secrets. River seeks answers at his grandfather’s house.

Lamb questions David about France as River comes face to face with the enemy.

Impossible decisions are faced and sacrifices are made.

A London bombing puts Taverner under pressure. When River grows concerned for his grandfather, Louisa encourages him to go for a visit.

The Slow Horses fight for their lives. Lamb shares some devastating truths with Catherine.

Taverner and Tearney face off for control of MI5. River and Louisa find themselves caught in the crossfire.

A romantic relationship in Istanbul ends badly. Lamb hits the panic button when one of his Slow Horses fails to show up for work.

Lamb liaises with a Russian defector who may hold a clue to sleeper agents. River is on the trail of a ruthless assassin.

River gets cozy in the Cotswolds while searching for a sleeper agent. Min discovers Russian drinking games are the most brutal of all.

River has to steal something out of the Park to save a life. Lamb realizes a stranger game is afoot.

Louisa makes her move on Pashkin. Catherine makes moves of a different kind when she plays high-stakes chess with a sinister stranger.

Marcus and Shirley face Lamb’s wrath. River discovers revenge is a dish best served cold.

Lamb orders his Slow Horses to walk into traps. River believes something alarming is heading toward London.

Tearney makes a bold move. The Slow Horses assist the Tiger Team, unaware of their hidden agenda. Lamb and Ho take a road trip.

Lamb and Katinsky go head-to-head. Ho finds himself trapped on a train with a Russian assassin.

Jackson Lamb is on high alert after a former spy is found dead. Min and Louisa are tempted by an offer from outside Slough House.

A tumultuous day finds Arabella reassessing a sexual encounter with Zain and, following a promising new lead in the investigation, opening up to Biagio about her assault. Later, after a…

Beattie and Sam are a young couple finally on the property ladder. But the only flat they can afford has a dark and sinister past, a past that demands to…

A text from her ex Freddie catches Aine by surprise. Later, a spontaneous night out with Bradley and his friends gives her the chance to let her hair down.

Romance blooms between Aine and Richard, but she’s caught off guard when she turns up unexpectedly to find another woman in his house.

Aine finds out her friend Tom has killed himself. Shona accidentally leaves Vish a damning voicenote intended for Charlotte.

After being dropped from a dinner party invitation, Aine calls an old friend from rehab for some company only for things to take an unexpected turn. Shona connects with new…

Excitement mounts for Aine as she prepares for a big first date with Etienne’s dad, Richard. Meanwhile Shona adapts to an awkward working relationship with Charlotte and struggles to settle…

Aine interviews for a new tutoring job teaching a young French boy, who has recently lost his mother, but she’s at risk of missing her first lesson and badly letting…

Aine and Richard’s relationship gets complicated when she is inadvertently invited for dinner but leaves early after an awkward misunderstanding

Aine spices things up with Richard and he opens up to her. Shona’s lack of support for Aine’s business venture hits her hard.

Vish tells Shona he is going to meet his ex in New York. Meanwhile, Aine helps Bradley out at a Windrush fundraiser.

Claire has a crisis and turns to Fleabag for help, whilst a familiar face makes a reappearance at the cafe. Hilary makes a friend, Martin demands answers, and Godmother and…

During the anticipated mayhem of a famous soccer player’s wedding, Robyn’s life begins to unravel and her house of cards is on the verge of collapse.

The team are left stumped when the owner of a hair salon is killed in front of her family without anyone seeing what happened.

Barbara faces her most challenging case to date when she treats first-time mother Abigail Bissette and the birth does not go according to plan. As Sister Julienne struggles with the…

A woman desperate to boost her social media score hits the jackpot when she’s invited to a swanky wedding. But the trip doesn’t go as planned.