American History Documentary History

Across six hour-long episodes, "Inside Secret Societies'' explores some of the most clandestine and dangerous global underworld societies and their counter-culture dogmas. The mysterious mix of hard-core gangs, fanatical religious groups, shady cults, esoteric societies and criminal fraternities -- all seeking to gain control of the world -- includes the Nazi party, the Ku Klux Klan, the Yakuza, the Order of Assassins, and the Brotherhood of the Blood.