TV & SERIES
When the enemy is closer than you think, who do you trust?
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.
Created by Tom Bradby
Starring Gemma Arterton, Rafe Spall, Alexander Terentyev, Roger Allam, Avi Nash, Mark Stanley, Alex Kingston, Amaka Okafor
From TMDB release dates and JustWatch offers, as listed on 17 October 2026. Both change often; a missing date or offer means none is listed yet.
| First aired | 27 April 2026 |
|---|---|
| Latest episode | 5 May 2026 |
| Status | Returning Series |
| Seasons | 1 (5 episodes) |
New series worldwide this month · every release in the United States
JustWatch lists no streaming, rental or purchase offers for the United States yet. That does not mean Secret Service cannot be watched there: offers are often added close to release.
Availability data by JustWatch via TMDB. Offers and catalogues change often.
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