Secret Service backdrop
Drama•War & Politics•Crime

The Worst Episodes of Secret Service

Every episode of Secret Service ranked from worst to best. Explore the Worst Episodes of Secret Service!

Binge this in 3h 50m•Peaking at 7.3/10

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.

Airs on
ITV1
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons1

All1

Episode Rankings

  1. #1 Worst Episode
    Click to reveal
    Secret Service Season 1 Episode 1 - Episode 1
    6.9/10(208 votes)

    S1:E1

    An MI6 agent learns that there is a Russian asset in the UK Cabinet.

    Director:James Marsh
    Writers:Tom Bradby, Jemma Kennedy

    Be the first to start the conversation for this episode

  2. Secret Service Season 1 Episode 2 - Episode 2
    7.1/10(166 votes)

    S1:E2

    Kate suspects that her agent is in danger and, defying orders, prepares to rescue her.

    Director:James Marsh
    Writers:Tom Bradby, Jemma Kennedy

    Be the first to start the conversation for this episode

  3. Secret Service Season 1 Episode 5 - Episode 5
    7.2/10(162 votes)

    S1:E5

    Kate runs Cyclops in an audacious mission inside Moscow Secret Service HQ to finally trap the MI6 mole.

    Director:Farren Blackburn
    Writers:Tom Bradby, Jemma Kennedy

    Be the first to start the conversation for this episode

  4. Secret Service Season 1 Episode 3 - Episode 3
    7.3/10(160 votes)

    S1:E3

    Kate's bold rescue mission in Malta backfires and she draws flak from all sides.

    Director:James Marsh
    Writers:Tom Bradby, Jemma Kennedy

    Be the first to start the conversation for this episode

  5. Secret Service Season 1 Episode 4 - Episode 4
    7.3/10(153 votes)

    S1:E4

    The pressure mounts on Kate when the Russians target her family, and Rav follows clues to Geneva.

    Director:Farren Blackburn
    Writers:Tom Bradby, Jemma Kennedy

    Be the first to start the conversation for this episode

Worst Episodes Summary

"Episode 1" is the worst rated episode of "Secret Service". It scored 6.9/10 based on 208 votes. Directed by James Marsh and written by Tom Bradby, Jemma Kennedy, it aired on 4/27/2026. This episode scored 0.2 points lower than the second lowest rated, "Episode 2".