And the Dark Secret The Librarians : Season 4 Episode 1
TV-14 TNT 42m int(0)
Aired: December 13th, 2017 @ 8:00 PM EST on TNT
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.