Sezon 23
Bölümler
1 Britain's X-Files 9 Oca 2004 2 The Lost Liner and the Empire's Gold 16 Oca 2004 3 The Secrets of Enzo Ferrari 23 Oca 2004 4 The Mysteries of the Medieval Ship 30 Oca 2004 5 How Mad Was King George? 6 Şub 2004 6 Who Killed Rasputin? 1 Eki 2004 
7 The Lost Heroes 8 Eki 2004 8 The Mystery of the Black Death 15 Eki 2004 9 The Black Pharaohs 22 Eki 2004 10 The Secrets of the Mary Rose 29 Eki 2004 11 Julius Caesar's Greatest Battle 5 Kas 2004
7 The Lost Heroes 8 Eki 2004 8 The Mystery of the Black Death 15 Eki 2004 9 The Black Pharaohs 22 Eki 2004 10 The Secrets of the Mary Rose 29 Eki 2004 11 Julius Caesar's Greatest Battle 5 Kas 2004