9-1-1: Lone Star Season 5: Is it show’s last season? Here’s everything we know about series

Season 5 of '9-1-1: Lone Star' features a train derailment, challenging the team led by Captain Owen Strand. As personal and professional challenges unfold, including a surprise visit on T.K.'s birthday and Judd's resignation, the team faces new dangers and decisions. The season premieres on September 23.