"Red Flag," the sixth season's fall finale of 9-1-1 aired on November 28, 2022, focusing on chaotic Santa Ana wind-driven emergencies and the tragic death of Bobby’s AA sponsor, Wendell. The episode delves into Bobby’s suspicion of a rehab facility, alongside personal storylines involving Denny's parentage and Chimney’s housing search. Read the full recap at Nerds and Beyond . '9-1-1' Recap: Season 6, Episode 9 “Red Flag”