October 2018. Three college students from Seattle—Chloe, Emma, ​​and Maya—go to Olympic National Park in Washington state for a weekend. A classic Hoh River Trail hike, a night in a tent by the river, and return on Monday. None of them return home.
Their tent is found zipped shut from the inside. Their backpacks, sleeping bags, a mug of cold coffee—everything is in place. The three girls are gone. Search teams scour hundreds of thousands of acres of rainforest. Three years pass. Not a single clue. The case is closed.
On October 23, 2021, following a minor earthquake on the Olympic Peninsula, three cave explorers from the University of Washington enter a newly opened passage on the western slopes. What they find in a deep cave next to an underground spring makes them forget why they came here.
There are twenty-one scratches on the wall behind her. Her eyes are wide open, but she cannot see. And she is one of the three missing girls.
Where are her friends? What happened underground during those three years? And why will the first word she whispers in the hospital be "health worker"?
Watch the entire investigation to the end. This story will haunt you.

⚠️ This video is a fictional dramatization inspired by real crime cases. Names, places, and dates have been changed. The narration is AI-generated; some of the visuals were created using AI tools, and some are from licensed stock footage. No one in the video represents a real person.