In season five, everyone is suspicious when resident tech nerd Roddy Ho has a glamorous new girlfriend. When a series of increasingly bizarre events occur across the city, it falls to the Slow Horses to work out how everything is connected. After all, Lamb knows that in the world of espionage, the London Rules — cover your back — always apply.
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Episode 1
Bad Dates
A mass shooting rocks London, intensifying a testy mayoral race. Shirley believes one of the Slow Horses was the target of an attempted hit.
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Episode 2
Incommunicado
Lamb intercepts an assassin. Taverner receives a key piece of intel about the Abbotsfield shooting.
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Episode 3
Tall Tales
An act of sabotage grinds London to a halt. Taverner interrogates Roddy. Coe is convinced a destabilization strategy is at play.
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Episode 4
Missiles
Flyte sets out to find Roddy's girlfriend. The gang is dispatched to two different campaign events to prevent another attack.
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Episode 5
Circus
Lamb debriefs River and Coe. Roddy is pulled in to help decipher a piece of code as the destabilization strategy nears its final stage.
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Episode 6
Scars
It's up to the Slow Horses to stop Farouk's team from completing its mission in a final act of mass carnage.