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The Best Episodes of Secret Service Season 1

Every episode of Secret Service Season 1 ranked from best to worst. Discover the Best Episodes of Secret Service Season 1!

Binge this in 3h 50m•Peaking at 7.8/10

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.

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Episode Rankings

  1. #1 Fan Favorite
    Secret Service Season 1 Episode 1 - Episode 1
    5.5/10(129 votes)

    #1 - Episode 1

    S1:E1

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

    Director:James Marsh
    Writers:Tom Bradby, Jemma Kennedy

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  2. Secret Service Season 1 Episode 2 - Episode 2
    7.8/10(102 votes)

    #2 - Episode 2

    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

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  3. Secret Service Season 1 Episode 3 - Episode 3
    7.8/10(97 votes)

    #3 - Episode 3

    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

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  4. Secret Service Season 1 Episode 4 - Episode 4
    7.5/10(91 votes)

    #4 - Episode 4

    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

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  5. Secret Service Season 1 Episode 5 - Episode 5
    6.0/10(98 votes)

    #5 - Episode 5

    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

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Season 1 Ratings Summary

"Episode 1" is the best rated episode of "Secret Service" season 1. It scored 5.5/10 based on 129 votes. Directed by James Marsh and written by Tom Bradby, Jemma Kennedy, it aired on 4/27/2026. This episode is rated 2.3 points higher than the second-best, "Episode 2".