1 of 2 | Finn Little and Natalie Alyn Lind star in Season 1 of "Dutton Ranch," which wraps up Friday. Photo by Emerson Miller/Paramount+

NEW YORK, July 2 (UPI) -- When the Yellowstone spin-off, Dutton Ranch, wraps up its first season on Paramount+ Friday, viewers will get answers to shocking questions about the Jackson family's storied Texas cattle operation.

Episode 7 showed ranching matriarch Buelah Jackson (Annette Bening) suffering a heart attack at a party celebrating her successful 10 Petal Ranch's anniversary after she named her hot-headed biological son Rob-Will (Jai Courtney) as her successor instead of her smart and calm adopted son Joaquin (Juan Pablo Raba).

The business decision is met with immediate disapproval from Beth, Buelah's right-hand woman (Kelly Reilly), and Beth's husband Rip (Cole Hauser), the foreman at the 10 Petal Ranch.

Elsewhere, Rip and Beth's 19-year-old cowboy son Carter (Finn Little) and Oreana (Natalie Alyn Lind), Carter's 24-year-old girlfriend and Buelah's granddaughter, have an explosive, embarrassing fight at the party.