It’s the holiday season at St. Denis. Alex and Ron care for a patient whose diagnosis is not what it seems. Joyce enlists Serena’s help to boost St. Denis’ online presence. Bruce and Matt help a Santa in need.

Matt struggles to deal with a patient from his past. Bruce tries to rekindle romance with a former flame. Joyce treats patients to cover a nursing shortage.

Ron and Alex react very differently to a seemingly selfless patient. Joyce runs into an old flame. Matt helps Bruce find a new best friend.

With the threat of a nurse walkout, Alex is caught between her colleagues and Joyce. Ron and Bruce go above and beyond to help an unexpected patient.

Alex is torn between her daughter’s school play and an “all-hands” situation in the Emergency Department.

Joyce’s belief that personal life should stay out of the workplace is tested by unexpected news.

When Ron hexes the day to prove superstitions aren’t real, things at the hospital start getting weird.

Alex accidentally provokes the Emergency Department’s mean girls. Ron and Serena battle over parking etiquette. Bruce has a hard time letting go of the spotlight.

Ron and Bruce butt heads over a candy bar. Alex is forced to fire an incompetent employee. Matt seeks appreciation for saving a patient’s life.

Ron mocks Alex and Matt’s attempts to resolve a conflict between two prison inmates who stabbed each other in a gang fight. Serena helps Bruce address his fear of needles. Joyce finds herself smitten by the burly prison guard.

An “intimacy in the workplace” discussion leads Joyce to discover she’s out of the loop on office gossip. Alex gets self-conscious about her sex life. Bruce tries to fight a new policy about dating co-workers.

Joyce asks Alex to be the executor of her estate. Matt and Serena are forced to keep watch over a bickering family. Bruce grapples with unexpected DNA test results.

Ron’s bedside manner earns him a complaint from a frustrated patient. Alex insists an unflattering online review was not about her. Bruce confronts his high school bully.

Joyce pushes the staff to upsell patients on hospital procedures, kicking off some fierce competition and a case of mistaken identity. Bruce and Ron try to play plumber for a day.

An emotional support animal is loose in the halls of St. Denis. Alex goes big for Serena’s birthday to mixed results.

When a famous musician’s performance at the hospital is delayed, Joyce throws an impromptu talent show with the St. Denis staff. Alex attempts to connect with her daughter, Ella.

Joyce launches a women’s health initiative to unexpected results. Ron treats a patient who has all the answers. Bruce has an existential crisis.

Bruce and Alex give conflicting medical advice to a young athlete. Joyce competes with Tiger Woods in her alumni magazine. Matt and Serena (almost) drop an unconscious patient.

Ron’s teasing makes Joyce question whether her friendship with a pharmaceutical rep is genuine. Alex has trouble letting Serena take on a new task. Matt finds a mentor in Bruce.

At the annual fundraiser, Alex and her husband, Tim, try to have a wild, kid-free night. Ron and Joyce butt heads over hosting duties. Bruce sets out to win this year’s “Dancing with the Caregivers” competition.

A storm causes chaos in the Emergency Department. Alex is torn between an obligation to her husband and her co-workers’ needs. Joyce goes on a spending spree with found money.

Alex tries to hold on to her peaceful vacation vibes; Joyce faces a design crisis in the birthing center; Matt and Serena reassess their working relationship.

After Bruce is attacked at the hospital, Matt helps him deal with the aftermath; Alex motivates Joyce to amp up security, while Ron and Serena debate who is more qualified to defend themselves.

Alex and Ron spar over the wisdom of open communication. Joyce brings in a body scanner that proves overly distracting.

Ron and Bruce butt heads at a medical conference; Joyce tries to show her nurses some love for Nurse Appreciation Week.

Alex is eager to impress her old charge nurse, Pam, who comes back to St. Denis. Serena and Matt try to solve a patient’s mystery illness.