A 17-year-old spends the night with her grandparents. The next day she is collected, ready to be driven home. Part-way through the journey, the car stops, and she exits the family car for a final time before she is never seen again. Appeals are made by relatives, but no one seems to know what happened. Was she living off the grid, going unnoticed or was the unthinkable a terrifying reality…(Part 1 of 2).