Episode 243 The Librarians S04E12 And the Echoes of Memory

In the season four and perhaps series finale, the Librarians find themselves in an alternate universe in which memories of the Library have begun to fade away. The truth about Flynn's absence and Nicole's intentions become clear, and in the end, the Libarians rewrite Nicole's history. Flynn and Eve finally tether themselves to the Library and each other, and the world is once again safe.

Episode Grade: A+