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. Bruce takes a nickname to heart. Joyce and Ron feud over Stevie Wonder's potential demise.

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.