When eleven-year-old Zack Jennings moves to Connecticut with his father and new stepmother, they must deal with the ghosts left behind by a terrible accident, as well as another kind of ghost from Zack's past.
During rehearsals for a play based on his stepmother's bestselling children's books, eleven-year-old Zack discovers that the director is planning to raise a horde of evil specters from the dead by offering up a human sacrifice.
With the help of his stepmother, his dog Zipper, and new friend Malik, Zack Jennings faces ghosts and zombies at his new middle school, which is said to house a lost Confederate treasure.