| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | The Mayan Conspiracy |
February 17, 2012
H2
|
44 | |
| S04E02 | The Doomsday Prophecies |
February 17, 2012
H2
|
44 | |
| S04E03 | The Greys |
February 24, 2012
H2
|
44 | |
| S04E04 | Aliens and Mega-Disasters |
March 2, 2012
H2
|
44 | |
| S04E05 | The NASA Connection |
March 9, 2012
H2
|
44 | |
| S04E06 | The Mystery of Puma Punku |
March 16, 2012
H2
|
44 | |
| S04E07 | Aliens and Bigfoot |
March 23, 2012
H2
|
44 | |
| S04E08 | The Da Vinci Conspiracy |
April 6, 2012
H2
|
44 | |
| S04E09 | The Time Travelers |
April 27, 2012
History
|
45 | |
| S04E10 | Aliens and Dinosaurs |
May 4, 2012
H2
|
44 | |
| S04E11 | Secrets of the Pyramids |
December 21, 2012
H2
|
44 | |
| S04E12 | Aliens and Cover-Ups |
December 28, 2012
H2
|
44 | |
| S04E13 | Alien Power Plants |
January 4, 2013
H2
|
44 | |
| S04E14 | Destination Orion |
January 11, 2013
History
|
45 | |
| S04E15 |
The Einstein Factor
season finale
|
January 18, 2013
H2
|
44 |
No artwork of this type.
No artwork of this type.
