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

: A frantic T.K. Strand and Carlos's father, Gabriel Reyes , piece together clues that lead them to the pharmacy and eventually the house.

: The Honor Dogs suspect an infiltrator. To protect O'Brien, Owen blows his own cover, revealing his wire. The FBI is furious and freezes Owen out of the operation, claiming they have everything under control.

: Darryl is a local pharmacist who has been targeting and drugging women with mental illness diagnoses. 9-1-1: Lone Star Season 4 - Episode 4

While T.K. searches for Carlos, is occupied with his own dangerous situation involving the Honor Dogs biker gang.

Following the previous episode's cliffhanger, Carlos wakes up held captive in a strange house after being knocked unconscious. : A frantic T

: The episode ends with a chilling shot of a mysterious figure building a bomb near stolen ammonium nitrate, surrounded by photos of Owen, suggesting the threat to the 126 is far from over. Key Cast Members Rob Lowe Capt. Owen Strand Ronen Rubinstein T.K. Strand Rafael L. Silva Carlos Reyes Benito Martinez Gabriel Reyes Neal McDonough Sgt. Ty O'Brien Bonita Friedericy The episode originally aired on February 14, 2023 , on FOX.

'9-1-1: Lone Star' Recap: Season 4, Episode 4 “Abandoned” To protect O'Brien, Owen blows his own cover,

: After Carlos attempts to escape and fight Darryl, Trudie injects him with a lethal dose of morphine. T.K. and Gabriel burst in just as Carlos loses his pulse; T.K. performs life-saving CPR and administers Narcan to revive him. Owen’s Undercover Mission