Is Secrets of the Underworld coming back?

Secrets of the Underworld ended on May 26, 2016, on Real History. The series aired its entire first season, which consisted of six episodes. There are no upcoming episodes scheduled, and the show has concluded its run.

This documentary series explored some of the most secretive and dangerous global underworld societies. It examined groups such as the KKK, the Priory of Sion, and the Order of Assassins, delving into their beliefs, aims, and influence. The series provided a detailed look into clandestine meetings, power struggles, and secret oaths, revealing the shadowy realm of sectarian cults, religious fanatics, esoteric societies, and political militants that have shaped history.

The episodes had a runtime of 60 minutes each.