1 - Strange Games
A romantic relationship in Istanbul ends badly. Lamb hits the panic button when one of his Slow Horses fails to show up for work.
Season 3
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Season Overview
A romantic liaison in Istanbul threatens to expose a buried MI5 secret in London. When Jackson Lamb and his team of misfits are dragged into the fight, they find themselves caught in a conspiracy that threatens the future not just of Slough House but of MI5 itself.
Episodes
2 - Hard Lessons
River has to steal something out of the Park to save a life. Lamb realizes a stranger game is afoot.
3 - Negotiating with Tigers
Marcus and Shirley face Lamb's wrath. River discovers revenge is a dish best served cold.
4 - Uninvited Guests
Tearney makes a bold move. The Slow Horses assist the Tiger Team, unaware of their hidden agenda. Lamb and Ho take a road trip.
5 - Cleaning Up
Taverner and Tearney face off for control of MI5. River and Louisa find themselves caught in the crossfire.
6 - Footprints
The Slow Horses fight for their lives. Lamb shares some devastating truths with Catherine.