Sezon 4
Bölümler
1 Inca: the Empire of the Sun 3 Nis 2004 2 Homo Sapiens: the Revolution of Intelligence 17 Nis 2004 
3 Time Travel - Rome Five Centuries Ago 24 Nis 2004 
4 In the Trenches of the Great War 8 May 2004 
5 Mummies: a Challenge to Immortality 15 May 2004 
6 The Normandy Landings 22 May 2004 
7 Journey to the Poles 5 Eyl 2004 
8 The Great Florence of the Medici 12 Eyl 2004