Documentary following life inside the A&E department at St George's in south west London, where the patients treated include John, 89, who has acute abdominal pain. The medics think it could be an abdominal aortic aneurysm, which can prove fatal, and test results mean emergency surgery is required. Meanwhile, 68-year-old Mick and his wife Linda have been involved in a head-on car crash, with Mick suffering multiple injuries that could be life-changing, and 10-year-old Niall is brought to A&E after falling out of a tree during a family picnic and breaking his arm