First in the five-part series. What precisely is language, and how did humans acquire it? In an effort to answer those essential questions, a journey is taken back to prehistoric times in search of language's origin. Noam Chomsky, Brown University's Philip Lieberman, UC Berkeley's Johanna Nichols, Stanford University's Merritt Ruhlen, professor of anthropology Richard Klein, Nobel physicist Murray Gell-Mann, and others passionately defend their points of view. Additional topics include distinguishing features of human communication and what humankind's first utterances may have been. The early evolution and migration of humans is also considered. Accessibility options on the DVD are: (1) audio description, (2) expanded audio description, (3) English SDH subtitles, (4) closed captions.