It's another gruelling shift for the team at Barnsley Hospital's casualty department. Juggling a backlog of walk-in patients and a constant stream of new ambulance emergencies, they're struggling to keep waiting times down. In the hospital car park, paramedics rush to help 67-year-old Pauline who's fallen out of her car after getting her foot tangled in her handbag strap. Advanced clinical practitioner Chantelle immediately takes her to resus and discovers the fall has resulted in a serious injury. Chantelle's next patient is 83-year-old Melvyn, who's been rushed in with a deadly infection. She needs to assess Melvyn quickly and find the source of his potential sepsis. The next emergency is assigned to Dr Chris, who's being shadowed by junior doctor Sophie. They're treating 55-year-old Tracey in the high-dependency unit after she was rushed in with severe breathing problems. Tracey had a double lung transplant seven years ago, so it's vital the team get to the bottom of her condition before she deteriorates any further. And in the assessment hub, still battling a full waiting room, Sister Jane examines 75-yearold John's hand after a fall. His finger is badly damaged and needs an X-ray to determine if it needs surgery. But first, his ring, a family heirloom, needs to be cut off.

It's another busy day for the casualty team with patient numbers unusually high. Sister Rachel is running the shift, and she's under pressure with a shortage of cubicles - to make matters worse, IT systems start to fail across the hospital, causing chaos for patient flow. Urgent treatment is needed for 75-year-old Janet, who's been viciously attacked by a dog and has a large flap of skin hanging from her elbow.