Geocache looks at an emerging outdoor sport in which players employ multi-billion dollar global satellite positioning technology, the Internet, and hiking skills on a high-tech but low-stakes treasure hunt to locate items hidden all over the world. Geocache details the origins and rules of the game, the various types of caches - typically small, water-proof containers filled with a log book and trinkets - and the lengths players will go to in hiding and finding caches. The program spotlights the sport's zealous fan base, a quirky group of self-proclaimed techno-geeks, and visits GeoWoodstock IV, an international convention where players gather to socialize and geocache.

Sunday, 11/4/07 from 1-1:30 a.m. ET