A man is brought in with stomach pains and a suspected abdominal aortic aneurysm. His son receives a huge blow when he is told his father only has a 50 per cent chance of surviving the operation he urgently needs. A 33-year-old is treated after swallowing a cocktail of drugs in a suicide attempt, and staff fight to save a teenager who was stabbed in a street fight and has lost a life-threatening amount of blood