Abbie and Ichabod must find hidden clues to thwart the evil in Sleepy Hollow and Abbie gets an unexpected visit from the enigmatic Andy Brooks.
Thunderbird, Blink and Eclipse visit Wire, hoping to convince him to help again; the team discovers that the Inner Circle is on the way to raid a mutant detention facility; Jace is contacted by a member of the Purifiers.
Just when Derek's condition seems to be improving, a severe complication arises; when Cain's former girlfriend is admitted to the hospital for surgery, the doctors finally get a glimpse into his personal life.
Reeva Payge purges the Inner Circle of those who disagree with her, and she emerges as their leader; Sentinel Services becomes even more ruthless; Eclipse and Caitlin secretly meet with criminal hacker Wire to get info on the Inner Circle.