Part 5: Whats Beneath America

　　Everything which has made America bountiful and powerful is a product of forces which date back billions of years. How have earth's ancient forces made America what it is today? How did they create the gold that set California on a course to become the richest state in the Union, and how did vast sheets of ice enable Kansas to produce enough wheat to give six loaves of bread a year to every single person on earth? Using an array of dazzling visual effects, we connect past and present, showing how ancient geology has shaped modern America and its people.

　　Part 6: How Will the World End

　　The Mayans tell us it will happen next year, on 21st December to be precise. And terrible recent events from Indonesia through Haiti to Japan seem, to some, evidence of impending global doom. But just how likely is a global apocalypse – from a scientific point of view? When will it happen, if at all? Where? And how? Samuel L. Jackson hosts this CGI spectacular which examines the most likely ways the world might end, and uses the latest geological, seismic and telescopic devices to put a number on the likelihood of their occurrence, the timeframe within which they’ll take place, and even the potential casualties. It’s almost certainly not going to happen in our lifetimes, nor in that of any of our children or grandchildren…

　　Part 7: I Caveman Back to the Stone Age

　　Were we better off as cavemen? Morgan Spurlock ("Super Size Me") joins nine ordinary men and women in an attempt to survive in the wild using only stone-age technology. Cold, dehydration, and hunger threaten to derail the experiment from the The last ten thousand years have seen change on a scale previously unimaginable. From the first settlements around Ur and Catal Huyuk through the latest innovations in medicine, technology, travel and connectivity, we live in a world that would be utterly unrecognizable to our early ancestors. But alongside all this technological change, how much have we, as humans changed? Our bodies? Our minds? In this extraordinary social experiment, ten modern humans travel back in time to live like our earliest ancestors.

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