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

: 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.

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

Following the previous episode's cliffhanger, Carlos wakes up held captive in a strange house after being knocked unconscious. : He is held by Trudie , an

: Owen wears an FBI wire to a meeting with Sgt. Ty O’Brien , hoping to find evidence of domestic terrorism. : He is held by Trudie

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