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9-1-1: Lone Star Season 4

9-1-1: Lone Star Season 4


When a string of swiftly moving, violent thunderstorms struck Austin, causing hurricanes and tornadoes, torrential rain, flash floods, and extensive damage, Owen, Tommy, and 126 other people were called to a county fair. When they believed the situation couldn't get any worse, a "heat burst," a more unusual weather occurrence, struck the city and caused temperatures to soar to 122 degrees Fahrenheit.

air date

January. 24,2023

production companies

Ryan Murphy Productions, 20th Television, Brad Falchuk Teley-vision

Where to Watch 9-1-1: Lone Star Season 4

Season 4

9-1-1: Lone Star Season 4 Episode Guide

The New Hotness

S4 E1 The New Hotness

Jan. 24,2023

Captains Strand and Vega along with the members of the 126 are called into action to a county fair when a "Derecho," a series of fast-moving severe thunderstorms, hit Austin, causing hurricanic and tornadic-force winds, heavy rains, flash floods and a wide path of destruction. Owen's newfound passion for motorcycling puts him on a potentially dangerous path. Tommy has the potential for a romance when she meets an attractive single father. And as T.K. and Carlos prepare for their wedding, a secret from Carlos' past may stand in their way to happiness.

The New Hot Mess

S4 E2 The New Hot Mess

Jan. 31,2023

Captain Strand and the 126 race to the rescue when a woman is trapped in her mobile house that has been hijacked by her ex. Owen has a run in with former nemesis Sgt. O’Brien and is then questioned by the FBI. Tommy asks Grace dating advice. T.K. and Carlos meet with Iris Blake.

Cry Wolf

S4 E3 Cry Wolf

Feb. 07,2023

As Owen gets pulled deeper into the FBI’s investigation of the motorcycle gang, Sgt. O’Brien makes a confession to him. Meanwhile, Grace and the 126 respond to a call from a man who claims his girlfriend slipped over the side of a cliff and Carlos searches for a missing friend, putting his own life in danger.


S4 E4 Abandoned

Feb. 14,2023

As Owen wears an FBI wire for his meeting with O'Brien, The Honor Dogs crash the meet-up and let them know there's an infiltrator in their midst. A frantic TK desperately searches for a missing and held captive Carlos.

Human Resources

S4 E5 Human Resources

Feb. 21,2023

Owen helps defend Marjan when a rescue complaint forces her to make a challenging ethical decision. Meanwhile, Grace befriends a young boy who becomes a frequent 9-1-1 caller, but when she discovers he may be in some real danger she must step in.

This Is Not a Drill

S4 E6 This Is Not a Drill

Feb. 28,2023

Capt. Strand reveals to the 126 he has been working with the FBI to help bring down a domestic terrorist group with his Austin motorcycle club/gang The Honor Dogs, then race Owen to respond to a bomb threat at the State Capitol and put a stop to the terrorist deadly plans.

Tommy Dearest

S4 E7 Tommy Dearest

Mar. 07,2023

Capt. Strand and the 126 help a husband whose wife "dies" when she is not upside down. Grace takes a call from a pizza delivery driver who is in for the shock of his life. Tommy is worried Trevor's young daughter is a bad seed as she attempts to break them up. Paul is hesitant to go on a date with Asha, who knows him prior to his transition.

Control Freaks

S4 E8 Control Freaks

Mar. 14,2023

The 126 must rescue a father/son involved in a drivers ed lesson gone haywire, then encounter a self-help guru who has lost his self-control. Meanwhile, Owen turns into a "Dadzilla" in helping plan T.K. and Carlos' wedding, and Marjan is suspicious when she meets a couple on her road trip.

Road Kill

S4 E9 Road Kill

Mar. 21,2023

On her way back to Austin, Marjan is in for the fight of her life when she is targeted by a killer.


S4 E10 Sellouts

Mar. 28,2023

Tommy goes paramedic crew-to-crew against her former employer, private contractors Paragon Medics, as they deal with emergencies involving a dialysis patient and at a perfume factory. Meanwhile, Owen hits it off with a beautiful woman he meets at a fundraiser.

Double Trouble

S4 E11 Double Trouble

Apr. 04,2023

The 126 race to rescue a woman with an arrow shot into her head; Judd is doubly surprised by news Wyatt shares; Mateo helps a family member in need and comes to regret it.

Swipe Left

S4 E12 Swipe Left

Apr. 11,2023

When she discovers her former fiancé is having a baby with his new wife, The 126 help Marjan enter the dating world through a series of chaperoned dates; Owen and the team are called to the rescue when a pregnant woman takes matters (and her anger) out at a motel where she suspects her husband is cheating on her.


S4 E13 Open

Apr. 18,2023

Owen is shocked by a secret Kendra has been keeping from him; Grace confronts her father about his past infidelity.

Tongues Out

S4 E14 Tongues Out

Apr. 25,2023

Owen enlists Paul's help in proving Kendra's innocence; Tommy deals with church gossipers over her relationship with Pastor Trevor.


S4 E15 Donors

May. 02,2023

Grace and Carlos work together when they suspect a young woman was a victim of a black market organ trafficking ring; Owen's brother Robert comes to visit and meet T.K., but surprises Owen with news that can affect the Strand family.

A House Divided

S4 E16 A House Divided

May. 09,2023

When Tommy and Judd disagree on protocol during a rescue at paper mill, a full-on feud develops between the 126 EMS and Fire. Owen awaits news that could change his and T.K.'s lives forever.

Best of Men

S4 E17 Best of Men

May. 16,2023

Owen is conflicted when his brother Robert asks him for help; Judd and Grace face a family crisis; As T.K. and Carlos prepare for their wedding day tragedy strikes.

In Sickness and in Health

S4 E18 In Sickness and in Health

May. 16,2023

Owen is conflicted when his brother Robert asks him for help; Judd and Grace face a family crisis; As T.K. and Carlos prepare for their wedding day tragedy strikes.

More Episodes

Cast of 9-1-1: Lone Star Season 4

Rob Lowe

Owen Strand

Gina Torres

Tommy Vega

Ronen Rubinstein

Tyler Kennedy "T.K." Strand

Sierra McClain

Grace Ryder

Jim Parrack

Judd Ryder

Natacha Karam

Marjan Marwani

Brian Michael Smith

Paul Strickland

Rafael Silva

Carlos Reyes

Julian Works

Mateo Chavez

Brianna Baker

Nancy Gillian