9-1-1: Lone Star season 5 has been highly anticipated since the television show’s season 4 finale in May 2023, but one series regular’s exit prior to its premiere spells trouble for the upcoming episodes. The Fox procedural drama, created by Ryan Murphy, Brad Falchuk, and Tim Minear, serves as a spinoff of 9-1-1 and premiered in January 2020. Led by Rob Lowe, the cast of 9-1-1: Lone Star is made up of actors and actresses playing first responders, including firefighters, paramedics, and police officers, in Texas (hence the “Lone Star” part of the show’s title).
https://screenrant.com/9-1-1-sierra-mclain-grace-exit-season-5-problem/