High above the forest, fire lookout towers are built to give their occupants a clear view of the wilderness below.

But when night falls and the miles of empty woodland begin to close in, some watchers have reported strange figures between the trees, unexplained footsteps on the stairs, voices coming from the darkness and the unsettling feeling that something is watching them from beyond the tower windows.

In this episode of Real Unexplained, we explore a collection of terrifying encounters reported from remote fire lookout towers, where isolation, darkness and the unknown are never far away.