For decades, mankind has witnessed the mystery of crop circles - the often beautiful but always baffling markings that appear in fields the world over. Previously dismissed by skeptics as the work of clever hoaxers, crop circles are now the focus of increasing scientific investigation. How can complicated crop circle designs appear in just minutes, often in complete darkness? Why does the crop undergo changes at the cellular level? What about the strange lights which appear over the fields where crop circles are found? Are crop circles the product of new military technology? Or are they messages from an intelligent force, perhaps an alien civilization? Experience a powerful eyewitness account of a crop circle being formed. What are crop circles trying to tell us?