'It was a gut punch': Yellowstone's Luke Grimes and Kelsey Asbille admit they're 'still processing' the series' emotional ending

EXCLUSIVE: The Yellowstone cast have been tight lipped about the series' highly anticipated ending.

But stars Luke Grimes and Kelsey Asbille can confirm this: the finale will shock you to the core, and it all starts within the first minutes of the season premiere.

The final instalment of Yellowstone will premiere Tonight November 11 at 6:30pm AEDT only on Stan.

In an Australian exclusive, the two spoke to 9Entertainment ahead of Yellowstone's emotional final season – which premieres tonight – as they revealed what to expect following Kevin Costner's shock absence from the series.

"Page one [of the script], literally. It gets right into it," said Luke of the moment that most surprised him.

Find out exactly why and watch Luke Grimes and Kelsey Asbille's exclusive Australian interview in the video above.

As far as endings go, Luke said fans will be crying "for sure".

"It's kind of a gut punch. [Creator] Taylor [Sheridan] really just goes for it," said Luke, who plays youngest son Kayce Dutton in the series.

"There's a finality to it and he really leans into the loss and the end – in a beautiful way, though," he explained.

"It's going to make you feel all the right things you want to feel in the finale episode of the show you've loved for so long."

READ MORE: Who will reign the Dutton Ranch? All of the wildest fan theories following Kevin Costner's shock Yellowstone exit

With its gripping storylines, explosive twists and unforgettable characters, Yellowstone has cemented itself as one of the most watched series in recent years.

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The cast of Yellowstone hit the red carpet for the Season 5, Part 2 premiere in New York

But one star notably not returning for the finale is actor Kevin Costner.

Earlier this year, the Hollywood star revealed that he would not be reprising his role of family patriarch John Dutton.

While a shock to fans, Kelsey (who plays Monica Dutton, Kayce's wife in the series) revealed it was a move that they had always "anticipated".

"We always anticipated his absence because so much of the story is about the Dutton legacy and once he's gone, how will the kids take it on?" she explained.

READ MORE: Kelly Reilly speaks out about Kevin Costner's shock Yellowstone exit ahead of finale

"So we were prepared for that. But he's been such an important part of the show and such an iconic character.

"We are so happy for the time we had with him."

Luke and Kelsey said they were "really excited" for Yellowstone's final chapters to come out, but admitted it's been bittersweet.

READ MORE: 7 things to watch while you wait for Yellowstone's epic finale

"It's a little sad though that this is the last hoorah, this is the last time we'll all be doing this together so [I'm] kind of processing that at the same time," Luke said.

"It happened really fast. We started filming the last season and all of sudden it's the last day and everyone was gone.

"I remember the day we wrapped was very emotional. Driving home that day was very emotional just thinking that's the last time I'm going to get in my truck and drive home from the Yellowstone set.

"I've been doing that for seven years and it's over now."

And while fans say prepare to say goodbye to the Dutton family, this won't be the last you'll see of both stars.

"I'm excited about the prospect of what could be next," said Luke which includes spending time with his newborn.

READ MORE: Yellowstone star Luke Grimes shares first family photo after welcoming a baby boy with wife Bianca Rodrigues

The actor and country music star revealed he will also be releasing a new album.

"That's a thing now, if you're a touring country act you've got to go to Australia," he smiled.

"So sure, I'll be down there sometime soon!"

Yellowstone's final installment premieres November 11, the same day as the U.S., only on Stan.

Can't get enough of Yellowstone? Go behind the scenes of Season 5 Part 2 and catch an explosive first look in the video below:

The only place you can stream every episode of Yellowstone is on Stan.

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