The invisible revolution of nanotechnology is already at work in our lives. In this first episode, Professor Jim Gimzewski from UCLA introduces us to the world of nanomaterials: to photocatalytic coatings that coat walls and windows so they automatically clean themselves, and to a man-made nano fiber that is stronger yet lighter than steel.The episode then explores nano’s potential role as invisible intelligence in security devices and the impact of ultimate miniaturization, and networking in computers. In Korea, we meet scientists who are working on nano-electronic tags that will revolutionize the tracking of consumer goods. Japanese physicist Dr. Masakazu Aono is one of the world’s leading nanomaterials scientists and he is now collaborating with Professor Jim Gimzewski in an extraordinarily ambitious project (that seems closer to science fiction than contemporary science) — the building of artificial neural systems.