Season 4 poster

Season 4

6 episodes January 28, 2008

Episodes

1 Lost Cities of the Deep Jan 28, 2008 No ratings 2 Ancient Super Navies Feb 4, 2008 No ratings 3 Ancient Super Ballistics Feb 11, 2008 No ratings 4 Ancient Death Machines Feb 25, 2008 No ratings 5 Ancient Chinese Super Ships Mar 3, 2008 No ratings 6 Ancient New York Mar 10, 2008 No ratings