About two weeks ago, Kim Kardashian teased season 15 of her family's beloved series by saying it will be the most "argumentative season" in show history.

Kim added that she still isn't "backing down" from whatever fight to which she was referring above...

... but now we have a pretty firm idea who it involved.

In our first extended look at episodes to come, Kim sits in a director's chair and provides narration.

At one point, she says "my sisters are closer than ever," only for the footage to cut to her screaming: "You don't do f-cking sh-t!"

A weeping and angry Kourtney Kardashian shoots back: "You're just f-cking a bitch!"

WHOA THERE.

It's one thing for these siblings to have a disagreement. But we're dying to find out what led to such language and such vitriol, aren't you?

"Get the f-ck out of here and go!" Kim yells back at Kourtney. "Shut the f-ck up!"

These aren't two sisters who go at it very often. Interesting, right? And VERY intriguing...

Elsewhere on the upcoming season, there will be plenty of talk about babies and footage of babies, considering Kim, Kylie and Khloe now ALL have new ones.

It remains unclear, however, whether we'll be shown a lot of fallout from the Tristan Thompson cheating scandal.

Sources say Khloe will have the final say over this coverage.

There's also an exchange in the above preview that implies Caitlyn Jenner will still be a topic of conversation among the family.

"She just doesn't want to be a Kardashian anymore," Kim tells Khloe at the end of the teaser, to which Khloe replies:

"She can shove Kardashian up her f-cking vagina!"