The 19th series of the medical documentary programme begins by following the stories of two people who have come to the UK to make a new home for themselves. Plus, the story of a woman living with the legacy of cancer.
43-year-old Mohammad suffers from motor neurone disease and is rushed into hospital with severe sepsis. 47-year-old David has seriously injured his leg.
Mark, who's 32, is rushed to St George's, suffering a head injury due to an epileptic seizure. Anastasia, who's 80, struggles to walk due to severe pain in her leg.
Marion, who's 73 and was recently diagnosed with lung cancer, is admitted with a life-threatening infection. Roy, who's 83, suffers multiple injuries after falling off his roof.
Lucy is rushed in after a severe seizure. Simon comes to A&E with severe neck pain. Two-year-old Sophie is in paediatrics after being sprayed in the face with a cleaning product.