Julie Bowen makes the discovery that a close relative led a criminal organization that triggered a dark chapter of US history; another ancestor risked everything to fight for the freedom of African Americans.
Jennifer Grey discovers much more about the grandfather she thought she knew as she uncovers how he survived adversity to become a beacon of his community; and discovers a great-grandmother whose devastating tragedy stopped her from making it to America.
Noah Wyle investigates his maternal family line, discovering an ancestor who was catapulted into one of America's biggest wars, and whose life spiraled out of control from remarkable success to a shocking and tragic end.
Jessica Biel finds that the family lore of native American ancestry is false. She learns that she has some Jewish ancestors. She also learns that the family lore about an ancestor who fought in the civil war for the south surrendered to union troops and was shot in the back during a prison break is true.