Sezon 4

1. The Mayan Conspiracy 2012-02-17 2. The Doomsday Prophecies 2012-02-17 3. The Greys 2012-02-24 4. Aliens and Mega-Disasters 2012-03-02 5. The NASA Connection 2012-03-09 6. The Mystery of Puma Punku 2012-03-16 7. Aliens and Bigfoot 2012-03-23 8. The Da Vinci Conspiracy 2012-04-06 9. The Time Travelers 2012-04-27 10. Aliens and Dinosaurs 2012-05-04