Return of the documentary following life inside an A&E department. The series begins with the story of 22-year-old police officer Hazel, who is rushed to St George's after crashing her motorbike while out on a ride with her father. Meanwhile, 86-year-old John is admitted to A&E with a suspected `triple A" - a ruptured aortic aneurysm in his abdomen, a condition that can be fatal. The doctors must work quickly to diagnose the cause of the internal bleeding, but their investigations reveal further complications. John's children share the story of their father's life, and his surprising secret that sent shockwaves through the family.