Delilah is assigned to infiltrate the Order of the Lightbringer, a Satanic cult that plans to make Pittsburgh a test site for the Apocalypse. After Delilah's identity is almost discovered, Team Packer sends her to high school to hide out until things cool down.
But while Delilah may be reformed from her beguiling ways, she's still very much a demon-and she hasn't learned how to play well with others. In fact, trying to fit in and keep a low profile at high school may prove to be a tougher battle than bringing down the Order of the Lightbringer.