43 - 1Dawn of Humanity Sep. 16, 2015- 43 - 2Arctic Ghost Ship Sep. 23, 2015
- 43 - 3Secrets of Noah's Ark Oct. 07, 2015
- 43 - 4Cyberwar Threat Oct. 14, 2015
- 43 - 5Animal Mummies Oct. 28, 2015
- 43 - 6Making North America: Origins Nov. 04, 2015
- 43 - 7Making North America: Life Nov. 11, 2015
- 43 - 8Making North America: Human Nov. 18, 2015
- 43 - 9Inside Einstein's Mind Nov. 25, 2015
- 43 - 10Secret Tunnel Warfare Dec. 30, 2015
- 43 - 11Life's Rocky Start Jan. 13, 2016
- 43 - 12Mystery Beneath the Ice Jan. 20, 2016
- 43 - 13Himalayan Megaquake Jan. 27, 2016
- 43 - 14Creatures of Light Feb. 03, 2016
- 43 - 15Memory Hackers Feb. 10, 2016
- 43 - 16Iceman Reborn Feb. 17, 2016
- 43 - 17Rise of the Robots Feb. 24, 2016
- 43 - 18Vikings Unearthed Apr. 06, 2016
- 43 - 19Can Alzheimer's Be Stopped? Apr. 13, 2016
- 43 - 20Wild Ways Apr. 20, 2016
- 43 - 21Operation Lighthouse Rescue May. 04, 2016
- 43 - 22Bombing Hitler's Supergun May. 11, 2016
