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Series profile

Secret Service

When the enemy is closer than you think, who do you trust?

6.6/ 102026Episode runtime

DramaWar & PoliticsCrime

A British intelligence officer Kate Henderson races against time to uncover a UK politician's potential ties with the Kremlin, risking her reputation and family, as a murder and election loom.

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Behind the frames

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The cast

Faces behind the story

Gemma Arterton

Gemma Arterton

Kate Henderson

Rafe Spall

Rafe Spall

Stuart Henderson

Alexander Terentyev

Alexander Terentyev

Sergei Malinski

Roger Allam

Roger Allam

Sir Alan Brabazon

Avi Nash

Avi Nash

Ravindra Sangvhi

Mark Stanley

Mark Stanley

Ryan Walker

Alex Kingston

Alex Kingston

Rose Trewen

Amaka Okafor

Amaka Okafor

Imogen Conrad