A teaser of 9-1-1 Season 8 previews a serial killer on the loose when the show returns with new episodes next month.

The 911 promo for the March premiere shows Maddie in danger from a possible serial killer! Find out what we know so far.

Looking ahead, showrunner Tim Minear had told TV Insider, “There’s kind of a thriller that’s going to start in Episode 9 and ...