Explore the mysteries within each of US through advanced microphotography. Examine the coordination of muscles, bones, heart, and circulatory system of a world-class athlete in action; and the digestive dynamo that turns a sandwich into raw energy for Olympic skater Bonnie Blair. Find out how cracking the human genetic code has led to astonishing medical breakthroughs that could lead to cures for cancer, arthritis, and Alzheimer's.