The Diplomat: Season 4
The Diplomat season 4 is available in the US on Netflix.
Where to Watch in the US
The Diplomat season 4 streaming guide
The Diplomat season 4 (2026) has 8 episodes. In the US, it’s available on Netflix. The season premiered on October 15, 2026. The last episode aired on October 15, 2026.
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.
Season 4 Episodes
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.
A shocking security breach sends the administration into crisis as Hal assumes new duties. Trowbridge launches a manhunt, and Kate looks to the future.
A budgetary snag threatens to torpedo negotiations, with costly implications for the US. Stuart and Eidra get personal as they weigh their next move.
After Hal drops a bombshell that throws the UK alliance into jeopardy, Kate faces mounting pressure to control the damage by any means necessary.
Kate contends with her complicity in a stunning political shake-up, while a disenchanted Todd explores his options across the pond.
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.
Personal and political lives collide — and damaging secrets surface — when Kate and Hal join Grace and Todd in Italy ahead of the G7 summit.
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.
In the US, The Diplomat season 4 is available on Netflix. This episode list is updated as new episodes air.
Frequently Asked Questions
Where can I watch The Diplomat season 4?
The Diplomat season 4 is available in the US on Netflix. The episode list and Watch links are on this page.
How many episodes does The Diplomat season 4 have?
The Diplomat season 4 has 8 episodes; the first episode aired on October 15, 2026.
Where can I watch The Diplomat season 4 episode 1?
The Diplomat season 4 episode 1 (“Windsor”) is available in the US on Netflix, along with the rest of the season.
When did The Diplomat season 4 come out?
The Diplomat season 4 premiered on October 15, 2026.
What audio and subtitle options does The Diplomat season 4 have?
Audio and subtitle options for The Diplomat season 4 depend on the platform; US streaming services usually offer English closed captions (CC).
