Temporada 31
Imagens
| # | Imagem | Título | Exibido |
|---|---|---|---|
| 1 |  | Mars: Dead Or Alive | 4 de jan. de 2004 |
| 2 |  | Secrets Of The Crocodile Caves | 20 de jan. de 2004 |
| 3 | Dogs And More Dogs | 3 de fev. de 2004 | |
| 4 |  | Descent Into The Ice | 10 de fev. de 2004 |
| 5 |  | Crash Of Flight 111 | 17 de fev. de 2004 |
| 6 | Life And Death In The War Zone | 2 de mar. de 2004 | |
| 7 |  | Hunt For The Supertwister | 30 de mar. de 2004 |
| 8 |  | World In The Balance: The People Paradox (1) | 20 de abr. de 2004 |
| 9 |  | World In The Balance: China Revs Up (2) | 20 de abr. de 2004 |
| 10 |  | Battle Plan Under Fire | 4 de mai. de 2004 |
| 11 | Origins (1): Earth is Born | 28 de set. de 2004 | |
| 12 | Origins (2): How Life Began | 28 de set. de 2004 | |
| 13 | Origins (3): Where Are The Aliens? | 29 de set. de 2004 | |
| 14 | Origins (4): Back To The Beginning | 29 de set. de 2004 | |
| 15 |  | The Most Dangerous Woman In America | 12 de out. de 2004 |
| 16 |  | America's Stone Age Explorers | 9 de nov. de 2004 |
| 17 |  | Great Escape | 16 de nov. de 2004 |
| 18 | Ancient Refuge In The Holy Land | 23 de nov. de 2004 |