The History Channel

December 21, 2012: a prophetic date delivered in stone by the ancient Maya. Revered by scientists for their extremely accurate calendars, the Maya are also known for their mysterious ability to predict unsettling events so many are taking the December date seriously. On this date a rare galactic alignment will take place and coincidentally, as the alignment happens, our sun will be entering its most violent solar storm cycle. And, all of this comes at a time when scientists believe Earth s magnetic defense shield, which protects us from dangerous solar radiation, may be compromised. Our planet may become paralyzed. People are heeding the warning and getting prepared, including a group of everyday Americans learning how to fend for themselves and live off the grid.

The world is coming to an end on December 21, 2012! The ancient Maya made this stunning prediction more than 2,000 years ago. We'll peel back the layers of mystery and examine in detail how the Maya calculated the exact date of doomsday. Journey back to the ancient city of Chichen Itza, the hub of Maya civilization deep in the heart of Mexico's Yucatan Peninsula, to uncover the truth about this prophecy. The Maya were legendary astronomers and timekeepers--their calendar is more accurate than our own. By tracking the stars and planets they assigned great meaning to astronomical phenomena and made extraordinary predictions based on them--many of which have come true. Could their doomsday prophecy be one of them? In insightful interviews archaeologists, astrologers, and historians speculate on the meaning of the 2012 prophecy. Their answers are as intriguing as the questions.

The Hopi people have warned us that the world is headed for extinction. Based in the Arizona Desert, the Native American tribe of the Hopi has been prophesying about the fate of society for centuries. They have accurately predicted the coming of the settlers to their land, the birth of telecommunication, and the worldwide spread of the internet. The Hopi believe that our actions have caused the earth to become out of balance which will lead to a cataclysmic great purification of the planet that few will survive. To herald these end times, the Hopi believe that a blue star will arise in the heavens, followed by a great shaking of the earth. These prophecies have been passed down from generation to generation and warn of massive earthquakes, tsunamis and super-volcanos that threaten the lives of millions. The Foster family of Illinois is prepping in their own way to be ready for the end.

The Mayan civilization dominated Central America for nearly 2000 years, but by the 9th century A.D., the great Mayan cities were abandoned, and the Mayan people vanished. What could have happened to this advanced culture? Might the Maya have left clues as to how they surpassed other cultures in science, mathematics, time keeping, and most importantly, astronomy? In recent years, hieroglyphs have been decoded to reveal that the Maya were able to accurately predict shifts in the Earth's axis every 26,000 years. Inscriptions on the sarcophagus of their most prominent ruler, King Pakal, tell of a journey to the Milky Way. And a sophisticated calendar foretells of the end of the world in 2012. Most striking is their belief that knowledge was passed to them by otherworldly beings who descended from the sky. Could the ancient Maya have actually conspired with extraterrestrial visitors to plan the future--and even the very end of the world?

Asteroids on a collision course with Earth, super volcanoes, global warming, killer viruses--all are potential catastrophes that threaten to wipe out life on our planet. Are these simply natural disasters that have been occurring since time immemorial? Or are these threats terrifying prophesies from the Bible that are at last coming true? Are our fears overblown? Or are the infamous Four Horsemen of the Apocalypse riding among us in a countdown to Armageddon?

At 7:15AM on June 30, 1908, a giant fireball, as bright the Sun, explodes in the Siberian sky with a force a thousand times greater than the Hiroshima bomb. It decimates 1,000 square miles of forest--over half the size of Rhode Island, and was the biggest cosmic disaster in the history of civilization. What caused the apocalyptic fire in the sky? Over a hundred theories surround what is called the Tunguska event, varying from asteroids and comets to black holes and alien spaceships. Most scientists agree the Tunguska event will happen again, and next time, the human toll could be unimaginable. Now, NASA and other organizations race against time to stop the next planet killer before it ignites Armageddon.

The Maya, an ancient South American culture, predicted that time would end in a violent apocalypse on December 21, 2012. They created an elaborate astronomical calendar called "The Long Count," which stops abruptly in 2012. This date, which is also the winter equinox, coincides with an incredibly rare galactic alignment that happens once every 26,000 years. What did the Mayans think would happen when their calendar ended? And were they joined by other cultures--from different parts of the world and in different centuries--all pointing to 2012 as a calamitous end time? The Hopi Indians and Eastern Hindus have similar calendars, which are remarkably synchronous. One counter-culture mystic even uses an Ancient Chinese philosophy to unlock the key to a 2012 prophecy. Nostradamus himself suggests the world is headed toward a coming cataclysm. What can we do to head the warning of the Mayan apocalypse?

Nightmarish terrors long relegated to the pages of science fiction are threatening to become a reality in the 21st Century. As science continues to evolve, the boundaries of fantasy and reality have blurred as we uncover new truths about our world and beyond. This countdown to future Apocalypse has lead everyday people to prepare for survival in the face of the looming Doomsday. Utah housewife Peggy Layton has stored years worth of food in an underground shelter and zombie researcher Matt Mogk has developed his own survival plan including a stockpile of weapons specifically chosen to fend off a zombie attack.

Centuries ago the prophet Nostradamus had visions of the end of our modern world. Now, scholars decipher his mysterious predictions and learn of terrible tragedies and catastrophic events that threaten to annihilate global populations. Nostradamus has successfully predicted the rise of Hitler, the assassination of John F. Kennedy, the detonation of the atomic bomb, and countless other events. Many fear that the remaining unfulfilled prophecies of Nostradamus will manifest before our very eyes. At Radius Engineering in Texas, Walton McCarthy shows state of the art underground shelters to a concerned family and in South Florida, Billy Carson of Fort Terra Nova meets with a prospective client interested in joining an underground shelter community large enough to house over 350 people.

In 1994, Italian journalist Enza Massa was at the Italian National Library in Rome when she stumbled upon an unusual find. It was a manuscript dating to 1629, titled: Nostradamus Vatinicia Code. Michel de Notredame, the author's name, was on the inside in indelible ink. The book contains cryptic and bizarre images along with over eighty watercolor paintings by the master visionary himself. Follow the investigative trail of how the manuscript was found in the archives and exactly how it got there. New insight is given into the life of Nostradamus and his relationship with Pope Urban VIII, who knew about this manuscript and in whose possession it was for many years.

Hop aboard the longest privately owned train in the world, Ringling Brothers and Barnum & Bailey's circus train. PT Barnum's circus train started in the 1870s; and the US military used circus loading techniques in World War I. Host Matt Bown and the circus must race against the clock to dismantle tons of equipment and get it on the rails. As they travel from Baltimore to the Washington, DC corridor in the dead of night, Matt discovers the less glamorous side to the greatest show on earth.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

The Italian writer Dante called the sin of pride the "Chief of All Sins" -- the sin of Satan himself. The sin of pride was condemned by the Bible and the philosopher Socrates, while Romans and Vikings made it their greatest virtue. The sin of pride is thought to have led to the fall of Satan but strangely enough, the most famous story about Satan is not in the Bible. So what is the origin of the sin of pride?

Asteroids on a collision course with Earth, super volcanoes, global warming, killer viruses--all are potential catastrophes that threaten to wipe out life on our planet. Are these simply natural disasters that have been occurring since time immemorial? Or are these threats terrifying prophesies from the Bible that are at last coming true? Are our fears overblown? Or are the infamous Four Horsemen of the Apocalypse riding among us in a countdown to Armageddon?

At 7:15AM on June 30, 1908, a giant fireball, as bright the Sun, explodes in the Siberian sky with a force a thousand times greater than the Hiroshima bomb. It decimates 1,000 square miles of forest--over half the size of Rhode Island, and was the biggest cosmic disaster in the history of civilization. What caused the apocalyptic fire in the sky? Over a hundred theories surround what is called the Tunguska event, varying from asteroids and comets to black holes and alien spaceships. Most scientists agree the Tunguska event will happen again, and next time, the human toll could be unimaginable. Now, NASA and other organizations race against time to stop the next planet killer before it ignites Armageddon.

The Maya, an ancient South American culture, predicted that time would end in a violent apocalypse on December 21, 2012. They created an elaborate astronomical calendar called "The Long Count," which stops abruptly in 2012. This date, which is also the winter equinox, coincides with an incredibly rare galactic alignment that happens once every 26,000 years. What did the Mayans think would happen when their calendar ended? And were they joined by other cultures--from different parts of the world and in different centuries--all pointing to 2012 as a calamitous end time? The Hopi Indians and Eastern Hindus have similar calendars, which are remarkably synchronous. One counter-culture mystic even uses an Ancient Chinese philosophy to unlock the key to a 2012 prophecy. Nostradamus himself suggests the world is headed toward a coming cataclysm. What can we do to head the warning of the Mayan apocalypse?

Nightmarish terrors long relegated to the pages of science fiction are threatening to become a reality in the 21st Century. As science continues to evolve, the boundaries of fantasy and reality have blurred as we uncover new truths about our world and beyond. This countdown to future Apocalypse has lead everyday people to prepare for survival in the face of the looming Doomsday. Utah housewife Peggy Layton has stored years worth of food in an underground shelter and zombie researcher Matt Mogk has developed his own survival plan including a stockpile of weapons specifically chosen to fend off a zombie attack.