这个古老的组织隐藏在大都会公共图书馆中。致力于保护人类不受神秘藏物的魔法的侵害。收集藏物,保护藏物,和坏人斗智斗勇。本剧为TNT电视电影《图书管理员三部曲》的后续,和《13号仓库》非常类似。A secret sect of the Vatican Church unearths a map detailing the locations of the four cornerstones of the Library of Alexandria; Flynn and the Librarians work with an unexpected ally to stop them before the stones can be used to destroy the Library.