After a tragic accident, 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 by bloodthirsty creatures. As their friendships deteriorate, they find themselves in a desperate struggle to survive the creatures and each other.
|Tagline:||Scream your last breath.|
|Cast:||Alex Reid, Craig Conway, Leslie Simpson, Molly Kayll, MyAnna Buring, Natalie Mendoza, Nora-Jane Noone, Oliver Milburn, Saskia Mulder, Shauna Macdonald, Tristan Matthiae|
|Director:||Elizabeth West, Neil Marshall|