Abby and Agent Foster go on a two day FBI survival training course and encounter one of the creatures summoned by The Hidden One. Crane attempts to find out more about the symbol from the world Abby was trapped in.
On an FBI team-building day, Abbie and Sophie come face to face with a monster that may finally blow their cover with Reynolds. Meanwhile, Jenny and Joe find themselves in possession of something precious and Crane discovers that the symbol from the Catacombs may be more important than he realized.