The cryptic prophecies of Nostradamus have predicted some of the most dramatic and tragic events in history with chilling accuracy. There are many among his followers who say that he was not sealing us to this fate but warning us against it.

The Cold War might be long gone, but the nuclear threat has re-emerged. Meet nuclear preparedness enthusiasts as they dig their bunkers and stockpile supplies, determined to survive a threat that could become a global apocalypse.

A giant hidden planet with a gravitational pull so strong that it would literally cause the earth to turn upside down is on course to destroy us. Planet X has caused mass extinctions in the past. Some are preparing for the next celestial Armageddon.

Smallpox, the Black Death, Spanish Flu, Zika. History has taught us that when it comes to new viruses, humankind is still vulnerable, despite modern medicine. Meet people who are determined to survive the next global pandemic.

With the recent discovery of thousands of earth-like planets in the universe the search for intelligent alien life continues. Some astronomers warn, when we find it, we should be prepared for hostile extra-terrestrial species capable of anything.