Long-buried Cold War secrets emerge which threaten to bring carnage to the streets of London. When a liaison with Russian villains takes a fatal turn, our hapless heroes must overcome their individual failings and raise their spy game in a race to prevent a catastrophic incident.
8.1
Rating161
Votes190
Recommend4h 58m
Runtime6
Episodes2 / 5
Season2022
Year7.7 02 Dec 2022 47m
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.
7.9 02 Dec 2022 52m
Lamb liaises with a Russian defector who may hold a clue to sleeper agents. River is on the trail of a ruthless assassin.
8.1 09 Dec 2022 56m
River gets cozy in the Cotswolds while searching for a sleeper agent. Min discovers Russian drinking games are the most brutal of all.
8.1 16 Dec 2022 49m
Louisa makes her move on Pashkin. Catherine makes moves of a different kind when she plays high-stakes chess with a sinister stranger.
8.3 23 Dec 2022 45m
Lamb orders his Slow Horses to walk into traps. River believes something alarming is heading toward London.
8.3 30 Dec 2022 49m
Lamb and Katinsky go head-to-head. Ho finds himself trapped on a train with a Russian assassin.