A woman has a life-threatening allergic reaction to nuts. A man has an arm injury.

It s been a busy night at Barnsley Hospital's casualty department, so when Sister Benita Wainwright arrives to head the shift, the corridors are already packed full of patients.

The casualty department treats a broken leg from a forklift, a debilitating neurological disease, a possible spinal infection, and an injury from a fall.

Advanced Nurse Practitioner Cheryl Barnes has a serious trauma case to look after when 59-year-old Derek arrives with possible serious internal injuries after the car he was working on collapsed onto his chest. Elsewhere, a 47-year-old man is rushed in resus struggling to breathe with a collapsed lung, and a keen gardener arrives with an agonising back injury.

Doctors treat a two-year-old girl with dangerously low blood sugar levels, and 88-year-old former merchant navy man Bill is rushed in with heart and breathing problems. Elsewhere, Junior doctor Jake Mullen assesses 44-year-old Kay, who arrives at the hospital with flu-like symptoms and runs the risk of contracting a highly contagious strain of flu while treating her.

Junior doctor John Shepherd treats 24-year-old Craig, who fell from a six-foot fence onto concrete, while nurse Millie Schumacher is in ambulance admissions assessing 81-year-old Clifford, who has accidentally double dosed on his prescription medication and is suffering a blistering headache.