In season four premiere of The Librians, …and the Dark Secret, when a secret sect of the Vatican Church unearths an ancient map detailing the locations of the four cornerstones of the Library of Alexandria (the original Library), it’s up to Flynn and the Librarians – with the help of an unexpected ally – to stop them before the stones can be used to destroy the Library.
Directed by Marc Roskin
Written by Marco Schnabel
Series: The Librarians Season 4 Episode 1
Air Date: Wednesday, December 13, 2017
Time Slot: 8:00 PM-9:00 PM EST on TNT