NOVA presents exclusive coverage of new excavations that were undertaken in the summer of 2007 at the site of Ling Bua on the island of Flores, Indonesia. These are the first investigations of the cave site since the sensational discovery of tiny and bizarre human fossil bones at the site in 2004. NOVA investigates the furious scientific debate currently raging on what the "Hobbit" bones represent. Are they fossils of a previously unknown primitive branch of the human family? Or are they remains of a dwarf race of modern humans suffering from a strange pathological condition?