8 episodes

The Diplomat - Season 4

First aired Oct 15, 2026Season 4

In Season Four, two marriages threaten to eat each other alive. One catastrophic moment shatters the fragile peace Kate Wyler brokered between the US and UK, as well as the crumbling marriage she's trying to save. While she fights to stem the bleeding, President Grace Penn and VP Hal Wyler's conspiracy to steal Russia's most powerful weapon hurtles the United States toward war. Kate and Todd, at best an uneasy pair, unite to stop the Grace-Hal alliance from upending the balance of power abroad and at home.

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Community reviews for The Diplomat, shown here with its season details.

Peter McGinn

Apr 30, 2023

9.0

When I started watching this Netflix series, I thought I was watching the 2023 British series with the exact same title. I quickly realized I was wrong, as that series involves a more regional story of a diplomat who assists British citizens who get into trouble in Barcelona. This version, of course, involves world politics at the highest echelons. In any case, this series grabbed me and hung on for dear life. It’s rapid fire dialogue and conflict reminded me of The West Wing, and that is not a bad thing. There are a lot of balls in the air here, plot wise, so you shouldn’t watch it too close to nap time, if such a thing exists for you. The fifty minutes episodes seem about fifteen minutes long, so don’t be shocked if you binge-watch it. It felt to me like they saved too much for the final cliffhanger scene, considering that Netflix still hasn’t announced a second season. But it seems likely there will be ione, since the streaming g service indicates this was the favorite program of views right now, I will look forward to seeing it.

Episodes

Episode 1

Windsor

9.3

Oct 15, 202649 min4 votes

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.

Episode 2

Redcoats

8.8

Oct 15, 202643 min4 votes

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

Episode 3

The Typo

8.3

Oct 15, 202658 min4 votes

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

Episode 4

Pagliacci

8.7

Oct 15, 202653 min3 votes

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

Episode 5

Special Envoy

8.7

Oct 15, 202654 min3 votes

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

Episode 6

The Dead

8.8

Oct 15, 202654 min3 votes

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.

Episode 7

Phony Negroni

8.6

Oct 15, 202653 min4 votes

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

Episode 8

Warships

9.1

Oct 15, 202661 min4 votes

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.