It's a busy Mother's Day at south London's King's College Hospital as 23-year-old builder Jamie is rushed in by paramedics having fallen from the roof of a three-storey building, landing on a brick wall. The team performs an emergency ultrasound to determine whether he has suffered internal injuries or fractured his ribs and spine, and spot a punctured lung that needs to be reinflated. Four-month-old Weston has been brought to paediatric A&E after suffering from diarrhoea and vomiting for more than 24 hours, while doctors suspect David, 74, has had a stroke. Junior doctor Matt looks after 80-year-old Daphne, who has dislocated her replacement hip.