The Foundling tells the incredible and inspiring true story of Paul Fronczak, a man who recently discovered via a DNA test that he was not who he thought he was - and set out to solve two 50-year-old mysteries at once. Along the way he upturned the genealogy industry, unearthed his family's deepest secrets, and broke open the second longest cold case in US history, all in a desperate bid to find out who he really is.

In 1964 a woman pretending to be a nurse kidnapped an infant boy named Paul Fronczak from a Chicago hospital.

Two years later police found a boy abandoned outside a variety store in New Jersey. The FBI tracked down Dora Fronczak, the kidnapped infant's mother, and she identified the abandoned boy as her son. The family spent the next 50 years believing they were whole again - but Paul was always unsure about his true identity.

Then, four years ago - spurred on by the birth of his first child, Emma Faith - Paul took a DNA test. The test revealed definitively that he was not Paul Fronczak. From that moment on, Paul has been on a tireless mission to find the man whose life he's been living - and to discover who abandoned him and why.

This is the story of Paul's heart-wrenching and tortuous journey to solve both mysteries and finally learn the truth about his identity.

The Foundling is a touching and inspiring story about a child lost and faith found, about the permanence of families and the bloodlines that define you, and about the emotional toll of both losing your identity and rediscovering who you truly are.