1. Alien Planets Revealed
Aired: Sep 11, 2013 A look at new worlds uncovered by NASA's planet-hunting Kepler Telescope, inc...
2. Zeppelin Terror Attack
Aired: Oct 9, 2013 A look at the enormous, hydrogen-filled dirigibles that Germany used during W...
3. Killer Typhoon
Aired: Oct 16, 2013 A look at Typhoon Haiyan, which killed thousands and left millions homeless w...
4. Ghosts of Murdered Kings
Aired: Oct 23, 2013 The discovery of a prehistoric torso in a dried-up bog in Ireland leads archa...
5. Roman Catacomb Mystery
Aired: Oct 30, 2013 An investigation of a mass grave found in the catacombs beneath the streets o...
6. Great Cathedral Mystery
Aired: Nov 6, 2013 Examining the 15th-century dome that crowns the cathedral of Santa Maria del ...
7. Wild Predator Invasion
Aired: Nov 13, 2013 The effort to return apex predators-such as coyotes, bears and panthers-to th...
8. Inside Animal Minds: Bird Genius
Aired: Nov 20, 2013 An examination of the mental prowess of birds. Included: a wild crow focused ...
9. Inside Animal Minds: Dogs & Super Senses
Aired: Nov 20, 2013 How animals use their senses. Included: the differences between wolves and do...
10. Inside Animal Minds: Who's the Smartest?
Aired: Jan 8, 2014 An examination of animal intelligence. Scientists have observed that many cle...
11. Why Sharks Attack
Aired: Jan 15, 2014 Shark experts in Australia and the U.S. investigate the hunting instincts of ...
12. Escape from Nazi Alcatraz
Aired: Jan 22, 2014 Aero engineers and carpenters attempt to replicate an ingenious escape plan f...
13. D-Day's Sunken Secrets
Aired: Jan 29, 2014 Submersibles, underwater robots and 3D mapping tools are used to discover, id...
14. Vaccines - Calling the Shots
Aired: Feb 5, 2014 The science of vaccination, and the personal medical consequences when too ma...
15. Rise of the Hackers
Aired: Feb 12, 2014 The experts battling to protect data from hackers are spotlighted. Included: ...
16. Why Planes Vanish
Aired: Apr 2, 2014 An examination of the disappearance of Malaysia Airlines Flight MH370 and how...
17. Surviving Ebola
Aired: Apr 9, 2014 A recounting of the 2013-15 West African Ebola epidemic and the efforts to co...
18. Ben Franklin's Balloons
Aired: Apr 16, 2014 The daring aeronauts of 18th-century Paris, who took flight in hot-air and ga...
19. First Air War
Aired: Apr 23, 2014 An exploration of the development of aerial warfare in World War One.
20. Bigger Than T. Rex
Aired: May 7, 2014 A team of palaeontologists led by Nizar Ibrahim go in search of Spinosaurus, ...
21. Emperor's Ghost Army
Aired: May 14, 2014 Nova's examination or how thousands to terra cotta soldiers in Qin dynasty's ...
22. Killer Landslides
Aired: May 28, 2014 Scientists examine the causes of the 2014 Oso, Washington, landslide, the wor...