Renowned scholar Dr. Henry Louis Gates Jr., W.E.B. DuBois professor of the Humanities and chair of African and African-American Studies at Harvard University, takes Alex Haley's Roots saga to a whole new level. Using genealogy and DNA science, Dr. Gates tells the personal stories of eight accomplished African Americans -- a neurosurgeon, a TV host, an astronaut, a music entrepreneur, a sociologist, a movie star, a minister and a comedian -- tracing their roots through American history and back to Africa.