Advanced clinical practitioner Chantelle orders an urgent CT scan to asssess whether 79-year-old John has sustained any brain damage after falling at home and cracking his head. To complicate matters, John has a large cancerous growth on his cheek that has also been caught during the fall.

The first heatwave of summer has hit Barnsley, adding to the pressure of an already stressful day in casualty for sister Jane, who is in charge. Sixty-five-year-old Theresa arrives by ambulance and paramedics suspect she has had a stroke, but her condition suddenly deteriorates and it's up to physician associate Wayne and Dr Laura to get to the bottom of her condition quickly.