On September 14th, 1971, 16 year old Cathy Moulton was dropped off in downtown Portland, Maine to do a little shopping. She visited a friend before making the walk back home. Unfortunately, she would never make it there. Cathy's disappearance would go cold quickly, with no new leads of where she might be. Twenty four years later, a new detective on the case was able to track down where Cathy went from Portland, but that trail ended before Cathy or her body were found. What happened to Cathy Moulton that afternoon? Will her family ever get an answer?