Ancient monuments all over the world - from the Pyramids of Giza, to Mexico, to the ancient sites of China - are also awakening, reacting to a brewing crisis not of this earth, connecting to each other in some kind of ancient global network. A small group of scientists is assembled to attempt to unravel the mystery. What they discover will change the world. Imagine that 12,000 years ago it really did rain for 40 days and 40 nights. That storms reigned supreme. Imagine that survivors of human civilization really were forced to take to boats or hide out in caves on mountaintops. Then consider that these same myths from around the world predict this kind of devastation will occur time and again. What could cause such a catastrophe? What occurs in nature with such frightening and predictable regularity? A pulsar. But this is not just any pulsar - the ordinary type that pulses once a second, a minute, or even a week. This pulses once every 12,000 years and sends out a gravity wave of such ferocity it beggars belief. Not only that, it's closer than anybody has ever imagined. For it lives in our own backyard. It is the Sun.