Good documentary movie but I had one major issue with it.

No other possible explanations - such as those outside the norm [otherworldly or paranormal] - were given any serious discussion. It makes me a bit angry. In his books and interviews, David Paulides presents eye witness accounts of strange sightings and odd campground conditions that lend credence to unusual circumstances in some disappearances. The documentary did a disservice by not including at least a few theories outside the box of rational experience.