38 - 1Building the Great Cathedrals Oct. 19, 2010- 38 - 2Emergency Mine Rescue Oct. 26, 2010
- 38 - 3Trapped in an Elevator Nov. 02, 2010
- 38 - 4Dogs Decoded Nov. 09, 2010
- 38 - 5Secrets of Stonehenge Nov. 16, 2010
- 38 - 6Quest for Solomon's Mines Nov. 23, 2010
- 38 - 7Secrets Beneath the Ice Dec. 28, 2010
- 38 - 8Deadliest Earthquakes Jan. 11, 2011
- 38 - 9Making Stuff: Stronger Jan. 19, 2011
- 38 - 10Making Stuff: Smaller Jan. 26, 2011
- 38 - 11Making Stuff: Cleaner Feb. 02, 2011
- 38 - 12Making Stuff: Smarter Feb. 09, 2011
- 38 - 13Smartest Machine on Earth Feb. 09, 2011
- 38 - 14Crash of Flight 447 Feb. 16, 2011
- 38 - 15Venom: Nature's Killer Feb. 23, 2011
- 38 - 16Japan's Killer Quake Mar. 30, 2011
- 38 - 17Power Surge Apr. 20, 2011
- 38 - 18How Smart Are Animals? Feb. 09, 2011
