Memorable staff and patient stories at King's College Hospital and St George's in south London. Seventy-nine-year-old Carole is rushed to A&E with signs of a stroke. She's confused and undergoes tests and a CT scan so doctors can assess how best to treat her. Ten-year-old Aiden comes to paediatrics with his mum Angel after hurting his foot at school and part-time wrestlers Kieran and James come in after Kieran injures his knee in a bout.

This episode meets people who've taken big risks and explores how it's affected their lives. Motorbikers James and Peter are both rushed in. Ex-miner Alfred has severe chest pain.