Henry Louis Gates, Jr. explores the Jewish heritages of actor Jeff Goldblum, radio host Terry Gross, and comedian Marc Maron, uncovering previously unknown stories that show each share much more with their ancestors than a religious tradition.

Henry Louis Gates, Jr. traces the family trees of Francis Collins, Shirley Ann Jackson, and Harold E. Varmus — three pioneering scientists who've made dramatic contributions to our understanding of the world, all the while knowing little about their own ancestry.