Things get messy for the 118 following a massive pipe explosion. Meanwhile, Athena investigates the brutal beating of a man found behind a grocery store, and Bobby's working relationship with Brad from "HOT SHOTS" just got a little more intimate.

Following Maddie's mysterious 9-1-1 call, Chimney returns home to find his daughter alone and Maddie nowhere to be found; he then enlists Athena and Romero to help investigate.