Freema Agyeman narrates a documentary series focusing on the most extraordinary and eye-watering cases to come through the doors of a British A&E department. There's a boy who walked around for six weeks not knowing a pencil had punctured his lung; a prized pooch who breaks his owner's nose; a man whose ear is bitten off in a fight; and a patient whose body is engulfed by giant red spots. Plus a builder who has to be rescued from scaffolding after a slip up with breezeblocks splits his knee.