Melissa Etheridge digs into her French roots and finds a family shaken by a scandalous lawsuit; a turbulent relationship entangled with tragedy; and an adventuresome ancestor who prospered in colonial America.

Actor/Director Bill Paxton researches his paternal lineage, uncovering the captivating life of an ancestor who was a war hero in a historic battle and who shaped politics and society during a turbulent era.

America Ferrera searches for a connection to a father she barely knew, and discovers a great grandfather who led multiple revolts against the government and left an enduring mark on Honduran history.

Beyond a family of Hollywood Legends, actor/director Tony Goldwyn explores his maternal lineage. He is introduced to a heritage of political activism; a couple ahead of their time proudly fighting for abolition, women's rights and westward expansion.

Actor/Producer Sean Hayes searches for the cause of his estranged father's troubled past and uncovers a shocking trail of tragedy and crime that reaches back generations.

Actress Angie Harmon discovers a daring ancestor who gave up his freedom to come to America, fought for his new country's independence, and risked everything at a pivotal point in America's history.

Josh Groban traces his ancestors' roots to Germany and discovers a relative who was a deacon, music teacher & well known astronomer. But Josh's ancestors' predictions of cataclysmic doom put him in the crosshairs of the church.

Julie Chen never knew her maternal grandfather; he died long before Julie was born. All she had heard was that he was a wealthy playboy with a rags-to-riches story. Julie sets out for rural China to learn more about his life and uncovers a dramatic tale.

Kelsey Grammer takes a trip into the past to explore his beloved grandmother's family. He uncovers the story of a woman haunted by demons, and finds a connection to family who risked everything in one of the greatest migrations in American history.

Valerie Bertinelli goes on the hunt to unlock her family's mysteries. She tracks down courageous ancestors who suffered through hardship and tragedy, and discovers a royal lineage dating back centuries that she never dreamed possible.

Rachel and Kayleen McAdams discover an English ancestor surrounded by a privileged world, but forced to separate from those he loved; they connect with relatives uprooted by war, and uncover the harrowing circumstances behind their Canadian roots.

Award winning actor Jesse Tyler Ferguson thought he came from a "nice, boring family" until he digs into his ancestry and follows the life of his great-grandfather; a gilded age hustler that trouble seemed to follow at every turn.

Actress Cynthia Nixon searches for answers in her paternal line, and truth becomes stranger than fiction when a mystery of deceit and murder slowly unfolds in relation her 3x great-grandmother.