Foundlings are people abandoned as babies, often in the first hours and days of their lives. Born without trace, with no identifying information, they have had no way of unlocking the secrets of their past. But in this new ground-breaking documentary series, presented by Davina McCall and Nicky Campbell, the team behind Long Lost Family combine the latest DNA technology with painstaking detective work, to enable four foundlings to finally uncover their identities.This two-part series features the incredible true story of a man who was left in a car on the outskirts of Belfast, and a woman left the other side of the Irish border in a telephone box in Dundalk. Also, a woman found at just two hours old in a ladies public toilet in Warminster and a man found in a corned beef box outside a railway tavern in Greenhithe. All four are searching for answers to the most fundamental questions: when's my birthday; where do I come from; who are my parents and who am I?