Netflix is finally ready to bring The Diplomat back for another round of political chaos, marital warfare and international brinkmanship. After Season 3 ended with one of the show’s biggest revelations yet, the Keri Russell-led thriller has officially set a premiere date for its fourth season — and fans won’t have to endure a weekly wait to find out what happens next.

The Diplomat Season 4 will premiere on Netflix on Thursday, October 15, with all eight episodes arriving at once. That means viewers will be able to jump straight back into Kate Wyler’s increasingly complicated world and discover how she responds to the devastating secret uncovered at the end of Season 3.

Netflix has also released a teaser for the upcoming season, offering an early glimpse at the emotional and political fallout ahead.

And if the trailer is anything to go by, Kate’s marriage to Hal Wyler is about to become every bit as complicated as the international crisis surrounding them.

In the teaser, Kate is clearly attempting to repair her relationship with her husband, despite everything that has happened between them.

“I’m not trying to get out of the marriage,” Kate tells Hal. “I’m trying to get back in.”

It’s a striking admission for a character who has spent much of the series trying to balance her personal life with an increasingly demanding diplomatic career.

Kate acknowledges that their relationship is full of extremes, describing it as a combination of “high highs” and “really low lows.”

“The fights are gonna be spicy,” she warns.

That might sound almost playful, but the atmosphere between the couple remains anything but comfortable.

Later, Kate recites her wedding vows, promising that she will be there “for better or for worse.”

Hal’s response is brutally simple.

“Are you sure?”

That exchange may be one of the clearest indications yet that Season 4 won’t simply pick up the pieces from the previous installment. Instead, the new season appears ready to push Kate and Hal’s marriage into territory it has never entered before.

And there is considerably more at stake than whether the couple can survive another argument.

The official Season 4 synopsis promises that “two marriages threaten to eat each other alive.”

That description refers not only to Kate and Hal, but also to the increasingly complicated relationship between President Grace Penn and her husband, Todd.

Their personal dynamics are becoming inseparable from a political conspiracy that could have catastrophic consequences for the entire world.

According to Netflix’s synopsis, one devastating event will destroy the fragile peace Kate managed to negotiate between the United States and the United Kingdom.

At the same time, her marriage is already collapsing.

Kate will therefore have to fight on two fronts: trying to prevent an international disaster while simultaneously deciding whether her relationship with Hal can actually be saved.

That would already be enough pressure for most people.

But The Diplomat has never been particularly interested in giving Kate an easy assignment.

Season 3 ended with an enormous revelation that completely changed the nature of the show’s central conflict.

Kate discovered that Hal had secretly been working with President Grace Penn on a plan to steal a nuclear warhead from a Russian submarine.

Even worse, the United Kingdom — one of America’s closest allies — had apparently been kept in the dark.

The revelation was horrifying for Kate, not only because of the geopolitical implications but because of who was involved.

Hal wasn’t simply making another questionable political maneuver behind her back. He was now connected to a plan involving one of the world’s most dangerous weapons.

And Grace Penn wasn’t exactly an innocent bystander.

The president’s involvement meant that the conspiracy reached the highest level of American government.

That left Kate in an impossible position.

She is supposed to protect American interests and maintain diplomatic stability, but she now knows that people inside her own government may be willing to take extraordinary risks to achieve their objectives.

Season 4 will apparently pick up directly from that tension.

The synopsis teases that Grace and Hal’s conspiracy to obtain Russia’s most powerful weapon will push the United States toward war.

That could transform The Diplomat from a political thriller about maneuvering behind closed doors into a full-scale international crisis.

Kate’s response will be particularly interesting because she now has to determine whom she can trust.

Hal has always been one of the most unpredictable people in her life. Their relationship has survived political disagreements, professional rivalry and personal betrayals, but Season 3 may have crossed a line that is much harder to come back from.

Yet the teaser suggests Kate isn’t ready to walk away.

Her declaration that she is trying to get “back in” to the marriage indicates that some part of her still believes their relationship can survive.

That doesn’t mean reconciliation will be simple.

Hal is now the vice president, giving him more political power than ever before. Kate, meanwhile, remains one of the few people positioned to challenge the decisions being made around him.

The personal and professional consequences could therefore become impossible to separate.

The situation becomes even more complicated with the introduction of Todd Penn, played by Bradley Whitford.

Whitford, who previously worked with Allison Janney on The West Wing, returns as Grace Penn’s husband. His presence adds another layer to the political and personal relationships surrounding the president.

Meanwhile, Kate will reportedly join forces with Todd in an effort to stop the Grace-Hal alliance from destabilizing the balance of power both internationally and within the United States.

That unlikely partnership could become one of Season 4’s most intriguing developments.

Kate and Todd don’t necessarily have to trust each other. They simply need to recognize that their interests temporarily align.

And in the world of The Diplomat, temporary alliances can be just as dangerous as outright enemies.

Keri Russell will once again lead the series as Kate Wyler, with Rufus Sewell returning as Hal and Allison Janney continuing as President Grace Penn.

The supporting cast includes Ato Essandoh, Ali Ahn, Nana Mensah and Rory Kinnear, while Debora Cahn remains at the helm as showrunner.

The series also continues to have plenty of awards recognition behind it.

Season 3 earned seven Emmy nominations, including a nomination for Outstanding Drama Series. Russell, Sewell, Janney and Whitford were all recognized in acting categories, further demonstrating how much attention the series has attracted beyond its streaming popularity.

That critical recognition should only increase expectations for Season 4.

The biggest question now is whether The Diplomat can maintain the same balance that made its earlier seasons so addictive.

The series has always worked because it combines high-level political intrigue with intensely personal relationships. Kate’s career is fascinating, but so is her complicated dynamic with Hal. Their marriage can shift from affectionate to hostile within minutes, often while the fate of countries hangs in the balance.

Season 4 appears ready to make that combination even more extreme.

Kate wants to save her marriage.

Hal may be helping push America toward war.

Grace Penn has a secret involving a nuclear weapon.

Todd has his own reasons for getting involved.

And somewhere in the middle of all of it is Kate, trying to figure out whether she can trust the people closest to her while preventing an international catastrophe.

That’s a remarkably difficult diplomatic assignment, even by The Diplomat’s standards.

The good news for fans is that they won’t have to wait long to see how the story unfolds. Netflix has confirmed that all eight episodes will arrive simultaneously, allowing viewers to binge the entire fourth season beginning October 15.

After the explosive ending of Season 3, the next chapter has plenty of questions to answer.

Can Kate and Hal actually save their marriage? Will Grace and Hal’s conspiracy ignite an international conflict? And can Kate stop the people closest to her before their plans spiral completely out of control?

If the Season 4 teaser is any indication, Kate’s biggest battle may no longer be convincing other countries to trust America.

It may be figuring out whether she can trust her own husband.