In this two-part Channel 4 series, Professor Richard Dawkins challenges what he describes as 'a process of non-thinking called faith'. He describes his astonishment that, at the start of the 21st century, religious faith is gaining ground in the face of rational, scientific truth. Science, based on scepticism, investigation and evidence, must continuously test its own concepts and claims. Faith, by definition, defies evidence: it is untested and unshakeable, and is therefore in direct contradiction with science. In addition, though religions preach morality, peace and hope, in fact, says Dawkins, they bring intolerance, violence and destruction. The growth of extreme fundamentalism in so many religions across the world not only endangers humanity but, he argues, is in conflict with the trend over thousands of years of history for humanity to progress to become more enlightened and more tolerant.

Is it rational that the dead can communicate with the living and give sound advice on how they should live their lives? What about sticking pins into your body to free the flow of Chi energy and cure your illness? Or the bending of spoons using your mind alone? Is that rational? Richard Dawkins doesn’t think so, and feels it is his duty to expose those areas of belief that exist without scientific proof, yet manage to hold the nation under their spell. He will take on the world’s leading proponents in their field of expertise, meet the victims who have used them and expose the history of the movements – from the charlatans who have milked these practices to the experiments and testing that have failed to produce conclusive results.