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.

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.

Jennifer Barber is thriving in her first year dispatching at CVD, but when she gets caught in a never-ending cycle of calls involving children, she must lean on her team to help every caller.

The team honors their partners and is reminded of the danger police face daily; Savannah Brown, the youngest dispatcher at CVD, is eager to prove herself in front of her experienced colleagues.

Dispatcher Savannah Brown settles in at CVD thanks to the support from her police officer spouse, but while helping callers in threatening situations with little information to relay to police, she fears she is sending them blindly into danger.

With only 24 hours to go before Memorial Day finally ends, Charline and the team's determination is put to the ultimate test after days of life-and-death emergencies; it all comes to a head when an officer chasing a suspect goes silent.

It's rookie Savannah's first time dispatching July fourth. While she leans on her team's years of experience, there’s no telling what's to come. When a drunk driver takes off on Savannah's officers, she must come to grips with a tragic outcome.