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.

911 Dispatch Trainee Matt Reinke is almost through the training program at CVD, but before he graduates, he must prove his ability to successfully navigate the night shift, the callers, and his fellow dispatchers.

Supervisor Charline Polk leans on her 16 years of experience to handle crisis after crisis, but when she answers the phone to an open line and screaming in the background, she is faced with a situation that chills her the bone.

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.

Dispatcher Melanie McCavish and the team ramp up into all hands on deck when a barrage of shots fired calls come in at the same time, including a call from the person who's been shot.

911 Dispatcher Abby Encarnacion is pregnant with her first child and must navigate working 12-hour shifts, taking highly emotional calls, and instructing CPR to a mother who discovers her son is unresponsive.

It's dispatcher Marra Wargo's first week in her new position as Supervisor. Despite handling lifelong anxiety, she leads the team through a storm of emergencies, panicked witnesses, and a dog in danger.

911 Dispatcher Jackie Chappuies takes training rookie Hayley Kilbane into her own hands. Together they face back-to-back carjackings at the same gas station and a possible overdose that calls for immediate CPR, which Hayley has never instructed before...

Supervisor Christine "Mooch" Muccino drives the shift through a series of crises including a fatal car accident and a horrific shooting in broad daylight, but nothing shakes her to the core more than when she learns of a crisis at home.

The dispatchers at CVD brace for Full Moon madness. All hell breaks loose throughout the night when a traffic stop turns into a full-blown pursuit, strange lights in the sky are seen, and a major accident leaves a motorcyclist motionless.

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.

It's the best time of the year for the dispatchers; dispatcher appreciation week officially begins, and while morale is high, the crime rate seems to be higher; night shift is going to have to get creative to sort out a mess of emergencies.

Dispatch Appreciation Week is in full swing, raffle tickets are flowing, costumes are aplenty, and prizes will be won.

Jessica Merkosky taps into her cheerleader past to raise her team’s spirits and battle the heaviness of 911 calls. Her coworker Tiffany Ward, also takes on an emotionally-charged night when they each answer calls from families in a similar crisis.

The team comes together to support Donna Majoros when she’s faced with a call that brings a past trauma into light. When Essence takes a break, a carjacking goes from bad to worse. Melinda caps off another night at dispatch with a cake with a twist!

It's a double whammy at dispatch when St. Patrick's Day falls on a Full Moon. Charline takes matters into her own hands when she hears a couple screaming over an open line, and the night shift tries to track down a man who reports he's been shot.

Abby navigates being a new mom in a new supervisor; as she oversees the room, her skills are tested when a welfare check spirals into a pursuit; when reports of a juvenile with gunshot wounds come in, Abby faces a mother's worst nightmare.

Rookie Steve Schieferstein is new to CVD but brings a wealth of experience as a former EMT in police officer; for 12 hours straight, Steve must adjust to the other side of the phone and handle all types of calls — from roadkill to a full arrest.

Melinda Pilat is a bona fide believer in aliens and Bigfoot, thanks to her late father; leaning on his memory, she handles the horrors of a house on fire with dogs still inside and a color and distress who discovers her nephew unresponsive.

The shift is showered with food and fun during Appreciation Week, but the calls keep coming, including a robbery in real time and reports from the gruesome scene of an accident; dispatcher Tiffany Ward wins an award for a call from the previous year.

As Dispatch Week winds down, Essence keeps her eye on the prize; Charline and Melanie help a caller track down a cat burglar; dispatcher Jennifer Barber struggles to get a caller to start CPR before it's too late, earning herself a lifesaver pin.

Dispatcher Arnold Rinas taps into his 15 years of experience to prepare the new trainees for the job; he helps newbie Salena Hall navigate 911 and must deescalate a dangerous dispute when a neighbor pulls a gun on the caller and her family.

A year after dispatcher Donna Majoros took the 911 call before her mother passed, she leans on her best friend, Melinda, more than ever; Abby answers a call from an address connected to Donna, and her day goes from bad to worse.

Jessica Merkosky keeps spirits high on the dispatch floor while her shift scrambles to make sense of a reported gunshot victim in the drive-thru lane; when Jessica coaches a caller through CPR on his mother, she's shocked to learn the cause.