Playback is currently unavailable for S1 E1 · Episode 1. Episode details remain available below.
Secret Service
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
- Cast:
- Gemma Arterton, Rafe Spall, Alexander Terentyev, Roger Allam
- Language:
- English
- Country:
- United Kingdom
- Network:
- ITV1
Episode guide
Seasons
Season 1
Episodes
E01
Episode 1
★ 5.5Episode 1
2026-04-27 · 47mAn MI6 agent learns that there is a Russian asset in the UK Cabinet.
Current episode
E02
Episode 2
★ 7.8Episode 2
2026-04-28 · 48mKate suspects that her agent is in danger and, defying orders, prepares to rescue her.
Watch progress · Not tracked
E03
Episode 3
★ 7.8Episode 3
2026-05-03 · 44mKate's bold rescue mission in Malta backfires and she draws flak from all sides.
Watch progress · Not tracked
E04
Episode 4
★ 7.5Episode 4
2026-05-04 · 45mThe pressure mounts on Kate when the Russians target her family, and Rav follows clues to Geneva.
Watch progress · Not tracked
E05
Episode 5
★ 6.0Episode 5
2026-05-05 · 46mKate runs Cyclops in an audacious mission inside Moscow Secret Service HQ to finally trap the MI6 mole.
Watch progress · Not trackedCast
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
