Who Do You Think You Are?

Actress Ginnifer Goodwin delves into a family secret in hopes of connecting her father with the grandparents he never knew. She is shocked to find dark and turbulent lives filled with drug addiction and life-altering consequences.

JK Rowling sets off on a journey to uncover her maternal French roots. She stumbles upon a family mystery, and uncovers a harrowing tale of wartime heroism, then discovers the actions of a brave ancestor.

Alfre Woodard goes on a journey searching for her grandfather's roots, and finds a relative who endured one of the most horrifying periods in American history, but accomplished an extraordinary feat.

This special episode digs into its archives and features highlights throughout the seasons including triumphs and tragedies, delightful discoveries and sobering moments. It also unveils outtakes and never-before-seen footage from the "Who Do" vault.

Bryan Cranston's happy childhood shattered when his father abandoned the family when Bryan was just 11. Seeking answers, Bryan explores his paternal roots, finds a troubling pattern of desertion, a man of honor and an aunt he never even knew existed.

TV host Tom Bergeron unravels the mysterious history of his paternal roots in France, following Marguerite, his 9x great grandmother, who endured upheaval as a young girl and faced a critical decision to go against her Protestant upbringing for survival.