“She’s a central piece to the show.

She’s the voice on the phone of the title, you know what I mean?”

Now, a preview clip exclusive to EW provides our first clues ahead of Monday’s season 5 premiere.

Judd (Jim Parrack) 9-1-1: Lone Star, Sierra McClain in the “Tommy Dearest” episode of 9-1-1 LONE STAR

Judd (Jim Parrack) on ‘9-1-1: Lone Star’ season 5; Grace (Sierra McClain) on season 4.FOX; FOX via Getty

In the clip above, Judd surprises his son Wyatt (Jackson Pace) with a new home.

We also learn that Wyatt and Leigh Ann (Jessi Case) have had a son, Liam.

“Y’all, lemme get a picture of this for Grace.

Lone Star Season 5 first look photos

Jackson Pace as Wyatt Harris, Michelle C. Bonilla as Sara Ortiz, and Rafael Silva as Carlos on the ‘9-1-1: Lone Star’ season 5 premiere.ABC

She would kill me if I didn’t,” he says.

“Gracie told me she’s sorry she can’t be here.”

“Mama’s…Mama’s doing the Lord’s work,” Judd explains in agreement.

“I would love it, I’d beg her.

9-1-1: Lone Starseason 5 premieres Sept. 23 at 8 p.m.