5x14 - The Flying Doctors

A girl named Kathy complains of stomachpains and Chris does some tests. Kathy's father shows up secretly and he and Kathy leaves during the night. The tests show Kathy is a diabetic and Chris and Dougie tries to track her down. They succeed eventually but Kathy is in a coma. She is taken to hospital and will be fine. And her dad sets things straight with her mum.