After reclaiming a stolen treasure map, two brothers flee into the wilderness with a ruthless foreman and bloodthirsty bounty hunters on their heels. Just as they are cornered for a final showdown, a shocking betrayal by their pursuer changes everything—but will it be enough to get them out alive?

The lust for gold and the reading of a will brings eleven visitors to a remote island retreat, but an unseen, seemingly unstoppable evil follows to stalk them one by one. The bodies don't stop dropping until the final shattering conclusion. Who - or what - is the intruder? One thing is for certain: it will not stop until it kills them all.