More powerful than ever, Pandora unleashes her most evil force yet. Meanwhile, Abbie and Jenny work together when the latest monster targets the children of Sleepy Hollow.

In the aftermath of Jenny and Joe's run-in with Sophie, Abbie is in deep water with Reynolds. Meanwhile, the Witnesses deal with lasting implications of the shard and find themselves in grave danger as they come face-to-face with a greater evil than they could have imagined.