Knock at the Cabin

Seven-year-old Wen is vacationing with her fathers, Eric and Andrew, at a remote cabin in rural Pennsylvania. While catching grasshoppers, Wen is approached by a stranger named Leonard. Initially friendly, he explains that he needs Wen and her parents' help to save the world. However, Wen becomes suspicious when three other people appear with makeshift weapons. Wen flees to warn Eric and Andrew, but the visitors break into the cabin and tie them up, with Eric sustaining a concussion attempting to fight them.