
Cued by the popular "The Librarian" trilogy, this series introduces new members of an ancient group protecting mystical artifacts. Hidden below the Metropolitan Public Library, the secret society's longtime leader is Flynn Carsen, whose job has become very complicated. To help, the Library recruits Eve, a counterterrorism agent responsible for organizational security; Jacob, who has encyclopedic knowledge of art, architecture and history; Cassandra, who links auditory/sensory hallucinations to memory; and Ezekiel, a skilled thief and master technician. Overseeing them is Jenkins, the reclusive caretaker of the Library's sleepy little annex in Oregon. Noah Wyle executive produces and recurs as Flynn, the role he played in the movie series.

An investigation into a missing person uncovers what appears to be an alien invasion in a small town.

When Dulaque changes the course of fate, Baird begins moving through alternate timelines that reveal the changing destinies of the librarians.

Jenkins discovers there is something wrong with the library; the librarians are drawn together to solve the mystery of a massive storm that is parked over Manhattan.

Prospero summons other fictionals in order to retrieve parts of his staff; the librarians find themselves pitted against Frankenstein's monster and Sherlock Holmes' nemesis Moriarty; Flynn and Baird have a disagreement.