9-1-1: LONE STAR: Rob Lowe in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: Liv Tyler in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Ronen Rubinstein, guest star Patrika Darbo, Julian Works, Rob Lowe, Natacha Karam, Jim Parrack and Brian Michael Smith in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: Liv Tyler in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Julian Works, Natacha Karam and Brian Michael Smith in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Rob Lowe and Natacha Karam in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Natacha Karam, Ronen Rubinstein, guest star Patrika Darbo, Rob Lowe, Brian Michael Smith, Julian Works and Jim Parrack in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Brian Michael Smith and Natacha Karam in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Guest star Patrika Darbo, Julian Works, Rob Lowe and Brian Michael Smith in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Guest star Mark Elias, Rafael Silva and Guest star Brianna Baker in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Natacha Karam, Brian Michael Smith and Rafael Silva in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Guest star Aaron Hendry, Rafael Silva and Natacha Karam in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: Rob Lowe in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: Natacha Karam in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: L-R: Brian Michael Smith, Jim Parrack and Julian Works in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.

9-1-1: LONE STAR: Jim Parrack in the “Yee-Haw” episode of 9-1-1: LONE STAR airing Monday, Jan. 20 (8:00-9:01 PM ET/PT) on FOX. ©2020 Fox Media LLC. CR: Jack Zeman/FOX.