• S 3: Ep 4 Secret Sin City
    11/16/08
  • S 3: Ep 2 Tunnels of Hell
    11/2/08
  • S 3: Ep 1 City of Blood
    10/26/08
  • S 2: Ep 13 Secret Soviet Bases
    5/5/08
  • S 2: Ep 12 Katrina Underground
    4/28/08
  • S 2: Ep 11 Stalin's Secret Lair
    4/21/08
  • S 2: Ep 10 Washington DC: Seat of Power
    4/14/08
  • S 2: Ep 9 New York: Secret Societies
    3/31/08
  • S 2: Ep 8 Prophecies from Below
    3/24/08
  • S 2: Ep 7 Mob Underground
    3/17/08
  • S 2: Ep 6 Maya Underground
    3/10/08
  • S 2: Ep 5 Hitler's Last Secret
    3/3/08
  • S 2: Ep 4 Viking Underground
    2/25/08
  • S 2: Ep 3 A-Bomb Underground
    2/11/08
  • S 2: Ep 2 Vietnam
    2/4/08
  • S 2: Ep 1 Underground Apocalypse
    1/28/08
  • S 1: Ep 13 Underground Bootleggers
    7/23/07
  • S 1: Ep 12 Secret Pagan Underground
    7/16/07
  • S 1: Ep 11 Dracula's Underground
    7/9/07
  • S 1: Ep 10 Freemason Underground
    6/25/07
  • S 1: Ep 9 Beneath Vesuvius
    6/18/07