NOVA presents the first film ever made of the incredible chain of events which turns a sperm and an egg into a newborn baby. Amazing photographic techniques give the viewers the feeling of being reduced to the size of cells, following the sperm on its perilous voyage toward the egg, and meeting protectors and enemies along the way—like Ulysses on a microscopic odyssey.

NOVA takes a spellbinding voyage through one of the world's most fascinating and colorful ecosystems: a coral reef, where the line between plants and animals is blurred, "rocks" move, eat and fight, fish farm, and weak animals borrow the shields and weapons of stronger ones.