Keir, 13, has cystic fibrosis but is determined to use his time at Newcastle's Great North Children's Hospital to improve his lungs. His dream is to have a sleepover at his friend's house without his oxygen equipment in tow. Meanwhile, Kirk, also 13, gets behind the camera to show what it's like for a child to have major surgery, and 11-year-old Amy visits for her final dose of chemotherapy.