Hen the third season of ABC's Large Sky kicks off on Wednesday 

September 21, viewers will discover personal detective Cassie 

Dewell (Kylie Bunbury), undersheriff Jenny Hoyt (Katheryn Winnick) 

and newly appointed Sheriff Beau Arlen (Jensen Ackles) sustaining order 

in Helena, Montana, after two seasons of lethal turmoil. 

However when an area backcountry journey led by charismatic clothes shop 

Sunny Barnes (fka Sunny Brick) (Reba McEntire) goes awry, the trio 

faces their most formidable thriller but. The truth is, it is a thriller 

that is so formidable that the collection has a brand new identify for 

this go-around, Large Sky: Lethal Trails. 

Now, Deadline Hollywood is reporting solely that Rex Linn 

(Younger Sheldon, Higher Name Saul) can be reuniting with McEntire as Buck Barnes, 

husband of McEntire's Sunny Barnes and co-owner of Sunny Day Excursions.