Season 1

9-1-1: Lone Star follows a New York firefighter, Owen Strand, as he relocates to Austin, Texas, to rebuild a struggling firehouse. He brings his adult son, T.K., along and assembles a diverse team of first responders, including Judd Ryder, Marjan Marwani, Paul Strickland, and Mateo Chavez. The season explores their personal lives and professional challenges as they respond to various emergencies, including a tragedy at the firehouse, a runaway bull, and a man trapped in a grain silo. The season also delves into the team's struggles with building a cohesive unit while dealing with issues like a member's lack of modesty and a missing sister with schizophrenia.