Explore the controversial discovery of a 4.4-million-year-old skeleton some believe represents the renowned "missing link" of evolution long sought by scientists. This Discovery Channel program chronicles the fascinating story of "Ardi," found in the Ethiopian desert and thought to be a common ancestor to both man and ape. Narrated by Mike Rowe ("Dirty Jobs"). 88 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo.