Anne and Bruce frantically board up the windows and doors while Amy tries to communicate with the thing in the basement. Jack witnesses a horrific event, and Anne and Jack try to escape.
Anne prepares to drive with the kids to her sister's while Amy watches a disturbing event through her bedroom window. The power goes out and Bruce and Anne, trying to escape the entity outside in the darkness, witness a phenomenon they cannot explain.
As night falls, tensions mount between Anne and Bruce. Amy grows increasingly agitated. Bruce moves a large package from the barn to the basement of their home, to Anne's horror. Jack's camera zooms in on the thing locked behind the basement room door.
In the barn, Bruce and Jack deal with a terrifying discovery. Unexpected guests show up at nightfall and Anne and Bruce are forced to hand over the metal object that destroyed their roof.