The doctors reveal the special cells in your eyes which help you to see out of the corner of your eye, and they find out what it takes to be a hospital entertainer in Operation Takeover. Dr Chris heads to a laboratory where scientists are making blood from stem cells, and more medical mysteries are answered in Ouch and About On Call. Meanwhile in Accident and Emergency, one patient is brought in by air ambulance after cutting her chest and another has hit his head on a goalpost.
