Title from container

The Librarians embark once again to save the world but this season their greatest challenge will come from within the Library itself

Originally broadcast as single episodes of a television program between December 2017 and February 2018

Contains all 12 episodes of season four

Special features: 6 writer & director episode vlogs; commentaries for every episode

Rebecca Romijn, Christian Kane, Lindy Booth, John Harlan Kim, John Larroquette, Noah Wylie

Not rated

DVD, region 1, NTSC; wide screen (1.78:1); Dolby Digital 5.1

English dialogue; French or Spanish subtitles; subtitled in English for the deaf and hard of hearing (SDH)

Disc one.

And the dark secret ; And the steal of fortune ; And the Christmas thief ; And the silver screen --

Disc two.

And the bleeding crown ; And the graves of time ; And the disenchanted forest ; And the hidden sanctuary --

Disc three.

And a town called Feud ; And some dude named Jeff ; And the trial of the one ; And the echoes of memory