Sezon 40
Bölümler
1 Secrets of the Viking Sword 10 Eki 2012 
2 Forensics on Trial 17 Eki 2012 
3 Mystery of Easter Island 7 Kas 2012 
4 Ultimate Mars Challenge 14 Kas 2012 
5 Inside the Megastorm 18 Kas 2012 
6 Doomsday Volcanoes 2 Oca 2013 
7 Decoding Neanderthals 9 Oca 2013 
8 Rise of the Drones 23 Oca 2013 
9 Who Killed Lindbergh's Baby? 30 Oca 2013 
10 Building Pharaoh's Chariot 6 Şub 2013 
11 Earth From Space 13 Şub 2013 
12 Mind of a Rampage Killer 20 Şub 2013 
13 Meteor Strike 27 Mar 2013 
14 Ancient Computer 3 Nis 2013 
15 Australia's First 4 Billion Years: Awakening 10 Nis 2013 
16 Australia's First 4 Billion Years: Life Explodes 17 Nis 2013 
17 Australia's First 4 Billion Years: Monsters 24 Nis 2013 
18 Australia's First 4 Billion Years: Strange Creatures 1 May 2013 
19 Manhunt - Boston Bombers 29 May 2013 
20 Oklahoma's Deadliest Tornadoes 29 May 2013