A man is on a holiday in the woods with his wife and two kids when they are surprised by the arrival of an uninvited guest. Suddenly, he experiences a time lapse. Before he understands what's going on, he finds himself separated from his family. And when he starts finding several alarm clocks that seem to have been planted throughout the woods, he knows he has to race with time if he wants to see his family alive. Meanwhile, another family is in the woods, who may be related to the strange goings-on.