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Season 4

2024 · 6 episodes

In season 4, a bombing detonates personal secrets, rocking Slough House's already unstable foundations.

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Episodes

1Identity TheftA London bombing puts Taverner under pressure. When River grows concerned for his grandfather, Louisa encourages him to go for a visit.
2A Stranger Comes to TownA naive agent makes a discovery about the Westacres bomber. Lamb suspects that David knows more than he's letting on.
3Penny for Your ThoughtsRiver is trapped in France. Back at Slough House, the Dogs have come for Lamb.
4ReturnsTaverner is desperate to hide dangerous secrets. River seeks answers at his grandfather's house.
5Grave DangerLamb questions David about France as River comes face to face with the enemy.
6Hello GoodbyeImpossible decisions are faced and sacrifices are made.