Siblings Barbara and Johnnie visit their mother's grave in a remote Pennsylvania cemetery. During their visit, Barbara is attacked by a zombie. Her brother comes to her defense but is killed. Barbara flees the cemetery and discovers what at first seems to be an abandoned farmhouse. She seeks shelter there, only to find another pack of zombies. Shortly after, a man named Ben arrives, and the two clear the house of the dead and begin the process of barricading the doors and windows.