The Diplomat (Season 3)

No alliance lasts forever.

Amid an international crisis, a US diplomat contends with her high-profile job as ambassador to the UK and her strained marriage to a political star.

  • Poster for Emperor Dead

    Emperor Dead (Episode 1) 7.6

    Writer: Debora Cahn

    Air date: 2025-10-16

    Runtime: 42 min

    Overview: Amid a growing constitutional crisis, the staff scrambles to stage an impromptu inauguration, while Hal exploits the chaos behind the scenes.

  • Poster for Last Dance at the Country Club

    Last Dance at the Country Club (Episode 2) 7.4

    Writer: Anna Hagen

    Air date: 2025-10-16

    Runtime: 47 min

    Overview: Kate weighs a compelling offer. Eidra faces scrutiny over fallout from the Roylin debacle. Stuart pitches a proposal that goes far deeper than policy.

  • Poster for The Riderless Horse

    The Riderless Horse (Episode 3) 7.5

    Writer: Eli Attie

    Air date: 2025-10-16

    Runtime: 52 min

    Overview: As the nation pauses to mourn, Grace considers the framework of her administration. Private strain threatens Kate and Hal's polished public image.

  • Poster for Arden

    Arden (Episode 4) 7.5

    Writer: Jessica Brickman

    Air date: 2025-10-16

    Runtime: 51 min

    Overview: Kate's unique role grants her access to anyone she wants — except the one person she needs. Dennison puts actionable intelligence to personal use.

  • Poster for Birdwatchers

    Birdwatchers (Episode 5) 7.7

    Writer: Peter Noah

    Air date: 2025-10-16

    Runtime: 43 min

    Overview: Forced to play the perfect couple, Kate and Hal confront a looming problem in international waters and a development that could torpedo U.S. credibility.

  • Poster for Amagansett

    Amagansett (Episode 6) 8.0

    Writer: Debora Cahn

    Air date: 2025-10-16

    Runtime: 50 min

    Overview: At an emergency strategy session, Grace weighs unthinkable choices, while Kate rolls the dice on a gamble that could alter the course of history.

  • Poster for PNG

    PNG (Episode 7) 7.7

    Writer: Julianna Dudley Meagher

    Air date: 2025-10-16

    Runtime: 52 min

    Overview: Sequestered inside Winfield House as embassies go on alert and allies fall silent, Kate and Callum race to contain a potential disaster.

  • Poster for Schrodinger's Wife

    Schrodinger's Wife (Episode 8) 7.9

    Writer: Debora Cahn

    Air date: 2025-10-16

    Runtime: 55 min

    Overview: Kate must use all her leverage and political instincts to avert a catastrophe at a high-stakes summit — with the fate of nations hanging in the balance.

The Diplomat

Seasons