Series · 2026
Secret Service
When the enemy is closer than you think, who do you trust?
The series
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.
Episodes
Season 1 · 5 episodes · 2026
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Episode 127 Apr 202647m
Episode 1
6.0 / 10
An MI6 agent learns that there is a Russian asset in the UK Cabinet.
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Episode 228 Apr 202648m
Episode 2
Kate suspects that her agent is in danger and, defying orders, prepares to rescue her.
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Episode 33 May 202644m
Episode 3
Kate's bold rescue mission in Malta backfires and she draws flak from all sides.
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Episode 44 May 202645m
Episode 4
The pressure mounts on Kate when the Russians target her family, and Rav follows clues to Geneva.
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Episode 55 May 202646m
Episode 5
Kate runs Cyclops in an audacious mission inside Moscow Secret Service HQ to finally trap the MI6 mole.
Cast
Gemma Arterton
Kate Henderson
Rafe Spall
Stuart Henderson
Alexander Terentyev
Sergei Malinski
Roger Allam
Sir Alan Brabazon
Avi Nash
Ravindra Sangvhi
Mark Stanley
Ryan Walker
Alex Kingston
Rose Trewen
Amaka Okafor
Imogen Conrad
Khalid Abdalla
Zak Hussein
Aoife Hinds
Julie Price
Rochenda Sandall
Melissa Morris
Lydia Leonard
Amanda Walker
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