Last Stop December 2, 2022

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.

From Upshott with Love December 2, 2022

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

Drinking Games December 9, 2022

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

Cicada December 16, 2022

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

Boardroom Politics December 23, 2022

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

Old Scores December 30, 2022

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