When 18-year-old Bonnie Craig is found dead in a stream, authorities believe it was a hiking accident. But her mother, a former police officer, disagrees.

In the fall of 2003, 21-year-old Bethany Correira moved from central Alaska to college in Anchorage. But only a few days after her move, the student disappears without a trace.

Seven people mysteriously disappear in a remote village in Alaska, hours from the nearest road or town. The authorities are looking everywhere for clues and find only the traces of a bloody struggle.