9-1-1: Lone Star Season 4 Episode 18 – In Sickness and In Health – Owen is conflicted when his brother Robert (guest star Chad Lowe) asks him for help; Judd and Grace face a family crisis; As T.K. and Carlos prepare for their wedding day tragedy strikes. – Stream 9-1-1: Lone Star Season 4 Episode 18 Online for Free – Watch 9-1-1: Lone Star Season 4 Full Episode 18 Free – OnionFlix Official