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.

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.