An amnesiac spelunker (Shauna Macdonald) joins a rescue team to explore underground caves where bloodthirsty creatures dwell. There’s an existing subscription associated with your account that you ...

A series of films centre around six friends reunite for a caving expedition. Their adventure soon goes horribly wrong when a collapse traps them deep underground and they find themselves pursued ...

Distraught, confused, and half-wild with fear, Sarah Carter emerges alone from the Appalachian cave system where she encountered unspeakable terrors. Unable to plausibly explain to the authorities ...