cheryl, then meredith, two women missing and two desperate efforts to find them. she should be alive and we just can t let up. could this old movie hold the key to these new cases? a little blood, a little sex, a little violence. a film fantasy turns chilling reality. if someone has her, she s afraid. who could be behind this? and how would this real life story end? she was a blue belt in judo. if anybody could survive, it was meredith. if anybody could fight, it was meredith. mystery on blood mountain. hello and welcome to dateline extra. i m craig melvin. this is a muzzling case centered in national forests. it s about what happened when a young hiker out with her dog vanished. as her loved ones kept vigil, the police pressed on.