THE BRAIN is an astonishing voyage of discovery into our last biological frontier. Although today s computers can make calculations in one-100th of a second and technology can transport us outside the bonds of Earth, only now are we beginning to understand the most complex machine in the universe. Using simple analogies, real-life case studies, and state-of-the-art CGI, this special shows how the brain works, explains the frequent battle between instinct and reason, and unravels the mysteries of memory and decision-making. It takes us inside the mind of a soldier under fire to see how decisions are made in extreme situations, examines how an autistic person like Rain Man develops remarkable skills, and takes on the age-old question of what makes one person good and another evil. Research is rushing forward. We�ve learned more about the workings of the brain in the last five years than in the previous one hundred.