In the winter of 1922, on a remote German farm called Hinterkaifeck, a farmer noticed something strange in the fresh snow — footprints leading out of the forest, straight to his door, with no trail leading back. What followed was one of history's most haunting unsolved mysteries, and it all began with the smallest signs that something wasn't right.

The Call That Went Silent
13:33

Whatever He Saw, It Made Him Run
11:42

The Flannan Isles: The Lighthouse That Went Dark
12:39