Angela Hamilton searches for the truth about her brutal father, whom she suspects had collaborated with Nazis during World War II. The discovery of her father's wartime I.D. document leads Angela on an extraordinary journey through modern day Romania, following her father's footsteps to confront the dark secret hidden in his past. Meanwhile, Australian actor David Field searches for his real dad. A death bed confession by David's grandfather more than 25 years ago raised questions over his paternity, and now a DNA test holds the answer, but will the discovery be welcomed by everyone?

Sydney woman Li Ying Andrews searches for her lost past. Abandoned by an Uncle at an acrobatic school in Taiwan when she was just a small child, Li Ying grew up never even knowing her real name or her birthdate. Perth woman Marie-Anne Keefe, adopted as an infant, goes in search of her biological father after a terrible tragedy prevented her from ever meeting her mother.

Businessman Lance Innes tries to find the truth about his father who walked out on his family, while journalist Michelle White looks into her mother's criminal past.