I just watched 9-1-1: Lone Star 4×04 "Abandoned" https://trakt.tv/shows/9-1-1-lone-star/seasons/4/episodes/4 #trakt
As Owen wears an FBI wire for his meeting with O'Brien, The Honor Dogs crash the meet-up and let them know there's an infiltrator in their midst. A frantic TK desperately searches for a missing and held captive Carlos.