911 Dispatcher, Essence Sullins, and the night shift team field non-stop emergency calls from 7pm-6am, including one that connects to someone in Essence's family.

On her last shift at CVD, veteran 911 dispatcher Christine Mazzeo must navigate the chaos of St. Patrick's Day and say goodbye to the work-family she's been with through thick and thin over 12 years.

Nancy ties the knot. But first, the team must piece together the puzzle of a possible kidnapping. The dispatchers are interrupted during the Wedding Livestream when they hear police call out someone's been shot.

The shift comes together to support their pregnant teammate, Kaitlyn Schroeder, when she takes a call reporting two kids shot in the face, and a caller whose childbirth doesn't go exactly to plan.