After a personal tragedy, Sarah joins her friends on a caving expedition in the Appalachian Mountains. But when a rockfall traps them deep underground, their adventure turns into a nightmare. As they search for a way out, the group discovers they are not alone—lurking in the darkness are savage, cave-dwelling creatures. With rising tension and dwindling trust, the women must fight to survive against both the predators and each other.

Shauna Macdonald

Sarah Carter

Natalie Mendoza

Juno Kaplan

Alex Reid

Beth O'Brien

MyAnna Buring

Sam Vernet

Saskia Mulder

Rebecca Vernet

Nora-Jane Noone

Holly

Leslie Simpson

Crawler

Oliver Milburn

Paul Carter

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