Watch 9-1-1: Lone Star Season 4 online
9-1-1: Lone Star Season 4 streaming: where to watch online?
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Episodes
1. The New Hotness
The 126 are called into action to a county fair when a fast-moving group of severe thunderstorms hit Austin, Texas; Owen's newfound passion for motorcycling puts him on a potentially dangerous path; Tommy meets an attractive single father.
2. The New Hot Mess
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.
3. Cry Wolf
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.
4. Abandoned
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.
5. Human Resources
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.
6. This Is Not a Drill
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.
7. Tommy Dearest
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.
8. Control Freaks
The 126 must rescue a father/son involved in 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.
9. Road Kill
On her way back to Austin, Marjan is in for the fight of her life when she is targeted by a killer.
10. Sellouts
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.
11. Double Trouble
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.
12. Swipe Left
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.
13. Open
Owen is shocked by a secret Kendra has been keeping from him; Grace confronts her father about his past infidelity.
14. Tongues Out
Owen enlists Paul's help in proving Kendra's innocence; Tommy deals with church gossipers over her relationship with Pastor Trevor.
15. Donors
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.
16. A House Divided
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.
17. Best of Men
Owen is conflicted when his brother Robert asks him for help. Judd and Grace face a family crisis.
18. In Sickness and in Health
As T.K. and Carlos prepare for their wedding day, tragedy strikes.