While barricading the windows and doors, he explains to Barbara that a mutation resulting from radiation has caused the dead to arise and devour the living. Suddenly, Ben, a young black salesman also seeking refuge, appears and fights his way past them into the house. Meanwhile, the strange man has been joined by several other ghoulish figures who are trying to help him break into the farmhouse. Leaving the unconscious Johnny behind, Barbara flees to a nearby farmhouse and discovers a horribly mutilated corpse.
While visiting their father's grave, a sister and brother, Barbara and Johnny, are attacked by a strange, disheveled man.
