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

: 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.

: 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. 9-1-1: Lone Star Season 4 - Episode 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 episode ends with a chilling shot

: Owen wears an FBI wire to a meeting with Sgt. Ty O’Brien , hoping to find evidence of domestic terrorism. Strand Rafael L

: He is held by Trudie , an elderly woman who hit him with a shovel to protect her son, Darryl . Carlos discovers a woman's body in their pantry—Donna Burton, the woman Iris was searching for.

: Darryl is a local pharmacist who has been targeting and drugging women with mental illness diagnoses.