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The Best Episodes of The Diplomat Season 4

Every episode of The Diplomat Season 4 ranked from best to worst. Discover the Best Episodes of The Diplomat Season 4!

Binge this in 7h 5m·Peaking at 9.5/10
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Episode Rankings

  1. #1 Fan Favorite
    The Diplomat Season 4 Episode 8 - Warships
    9.5/10(2562 votes)

    S4:E8

    At a meeting of world leaders, a diplomatic breakdown edges the US closer to an international crisis — and compels Kate to make a seismic decision.

    Director:Alex Graves
    Writer:Debora Cahn

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  2. The Diplomat Season 4 Episode 7 - Phony Negroni
    8.7/10(1260 votes)

    S4:E7

    Personal and political lives collide — and damaging secrets surface — when Kate and Hal join Grace and Todd in Italy ahead of the G7 summit.

    Director:Alex Graves
    Writer:Anna Hagen

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  3. The Diplomat Season 4 Episode 4 - Pagliacci
    8.5/10(1250 votes)

    S4:E4

    After Hal drops a bombshell that throws the UK alliance into jeopardy, Kate faces mounting pressure to control the damage by any means necessary.

    Director:Liza Johnson
    Writer:Peter Noah

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  4. The Diplomat Season 4 Episode 6 - The Dead
    8.3/10(1033 votes)

    S4:E6

    When a dangerous adversary makes its move, Grace issues a hard-line threat to the prime minister, forcing Kate to reckon with her role as the messenger.

    Director:Tucker Gates
    Writer:Julianna Dudley Meagher

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  5. The Diplomat Season 4 Episode 5 - Special Envoy
    8.1/10(1013 votes)

    S4:E5

    Kate contends with her complicity in a stunning political shake-up, while a disenchanted Todd explores his options across the pond.

    Director:Tucker Gates
    Writer:Eli Attie

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  6. The Diplomat Season 4 Episode 2 - Redcoats
    8.0/10(1192 votes)

    S4:E2

    A shocking security breach sends the administration into crisis as Hal assumes new duties. Trowbridge launches a manhunt, and Kate looks to the future.

    Director:Alex Graves
    Writer:Debora Cahn

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  7. The Diplomat Season 4 Episode 1 - Windsor
    7.9/10(1441 votes)

    S4:E1

    On an unplanned stopover at Windsor Castle, Kate grows wary of Hal and Grace's dynamic as she tries to contain the fallout from their covert actions.

    Director:Alex Graves
    Writer:Unknown

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  8. The Diplomat Season 4 Episode 3 - The Typo
    7.8/10(1129 votes)

    S4:E3

    A budgetary snag threatens to torpedo negotiations, with costly implications for the US. Stuart and Eidra get personal as they weigh their next move.

    Director:Liza Johnson
    Writer:Jessica Brickman

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Season 4 Ratings Summary

"Warships" is the best rated episode of The Diplomat season 4. It scored 9.5/10 from 2,562 votes. Directed by Alex Graves and written by Debora Cahn, it aired on October 15, 2026. This episode is rated 0.8 points higher than the second-best, "Phony Negroni".