Season 12 aired between 28 Apr 2017 and 15 Sep 2017, 16 episodes.
Episodes
E01
Alien Hunters
28 Apr 2017
E02
Forged by the Gods
05 May 2017
E03
The Mystery of Rudloe Manor
12 May 2017
E04
The Alien Architects
19 May 2017
E05
The Pharaohs' Curse
26 May 2017
E06
The Science Wars
02 Jun 2017
E07
City of the Gods
09 Jun 2017
E08
The Alien Frequency
16 Jun 2017
E09
The Majestic Twelve
07 Jul 2017
E10
The Akashic Record
14 Jul 2017
E11
Voices of the Gods
21 Jul 2017
E12
The Animal Agenda
28 Jul 2017
E13
The Replicants
04 Aug 2017
E14
A Spaceship Made of Stone
11 Aug 2017
E15
The Alien Disks
08 Sep 2017
E16
Return to Gobekli Tepe
15 Sep 2017