Billie Jean King, Derek Jeter and Rebecca Lobo learn about their family histories. King discovers that her grandmother was an orphan; Derek Jeter investigates his ancestors' lives as slaves; and Lobo finds out that an ancestor was forced to flee Spain because of his democratic ideals.

Secrets encoded in their genomes challenge these guests’ ideas about their families’ histories and their identities today. This episode features Jessica Alba, Anderson Cooper, Valerie Jarrett, Governor Deval Patrick and more.