National Geographic Explorer Season 6 Episode release dates & where to watch

1. Mystery of The Disembodied Feet

2. Inside LSD

3. Secret History of Diamonds

4. 24 Hours After Asteroid Impact

5. Nazi Mystery: Twins from Brazil

8. 25 Years

9. Journey to an Alien Moon

10. Fatal Insomnia

An extremely rare genetic disease passed down through generations, fatal familial insomnia's (FFI) primary symptom is sleeplessness, but with a fatal twist: victims are dead within months. National Geographic delves into the science of sleep to find out why we need sleep and what happens to us when we don't get it. Witness the pioneering research inside the sleeping brain as well as the mind forbidden to rest for days at a time.

11. Talibanistan

12. Electronic Armageddon

13. Inside the DEA

14. 24 Hours After Hiroshima

15. Albino Murders

16. Inside Bioterror

17. Can the Gulf Survive?

18. Lost Mummies of New Guinea

19. How Man Tamed the Wild

20. Born to Rage?

21. American Hostage

22. Lost Cannibals of Europe

23. How to Build a Beating Heart

24. Clash of the Americas

25. Finding the Lost da Vinci

Leonardo da Vinci's "The Battle of Anghiari" vanished 500 years ago, with only copies rendered by other artists left behind to confirm its existence. Scientist and art enthusiast Maurizio Seracini, has dedicated 36 years to tracking down the missing mural, and seems to be on the verge of uncovering the hidden fresco behind the walls of the Palazzo Vecchio in Florence, Italy.

26. The Man Who Can Fly

27. Fighting ISIS Finale

National Geographic writer Neil Shea travels to the heart of Kurdistan on a quest to meet the Kurdish fighters on the front lines against the world's biggest terrorist threat, ISIS.