Episode list

Impossible decisions are faced and sacrifices are made.

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

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

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

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

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

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

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

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

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