Dazed, bloodied and speechless with trauma, Sarah Carter (Shauna Macdonald, The Descent) emerges alone from the caving trip where she encountered unspeakable terrors. Unable to explain to the authorities what happened, she is forced back underground to help the rescue party desperately searching for... MORE >

Dazed, bloodied and speechless with trauma, Sarah Carter (Shauna Macdonald, The Descent) emerges alone from the caving trip where she encountered unspeakable terrors. Unable to explain to the authorities what happened, she is forced back underground to help the rescue party desperately searching for her five missing friends. As the team moves deeper into unchartered caverns, nightmarish visions of the past begin to haunt Sarah as she remembers the horrors that lurk in the shadows.