It's July 4th at the Billy Barnes Extended Care Unit, and nurse DiDi Ortley is starting a new job. Events on her first day include the staff trying to decipher the identity of a mystery Asian woman.

In the wake of Nurse Raymes departure, Patsy De La Serda, a new supervising nurse, joins the Billy Barnes staff. Meanwhile, Donna, a more docile patient, wins DiDi's affections and displays impressive karaoke skills.

DiDi ends up in "conflict resolution" after Patsy files a grievance against her for inappropriate remarks. Meanwhile, Dr James and Patsy go head-to-head when she decides to skip the "Make Someone Happy" orientation to present her stool research at a medical convention.

Dr James decides to implement a geriatric exercise programme in the ward, upsetting Patsy whose "Make Someone Happy" initiative now includes a live pianist and a fountain. Meanwhile, a homeless woman, and her accompanying stench, is suspiciously dumped in the ward.

DiDi's serene evening shift is turned upside down by the arrival of a new Swedish-speaking patient and several unwelcome inebriated visitors.

Phyllis gets the run-around as her mother's condition worsens, improves and worsens again. Meanwhile, after falling out, the staff make up and come together to perform their weekly "Caregiver Concert" for everyone in the ward