In 1966, infant Simon was left in the outside toilet block of a mother and baby home in Neath in south Wales. In an unrelated incident, four years later in Christchurch, England, newborn Lisa was left in another baby's pram. Almost 60 years later, Simon and Lisa are still desperate to know who left them and why.

Davina McCall and Nicky Campbell help two more people who were found as babies after being abandoned to track down their birth families. Simon Jeffery was left in a box outside a railway tavern in Greenhithe, a story which hit the headlines but which he only learned about by chance at the age of 10. Fi Beazer was discovered in a public toilet in Warminster when she was only a few hours old. Both have spent their adult life trying to track down their parents, and submit DNA samples in the hope of finally getting the answers they seek.

Sarah was left in the stairwell of a Surrey car park in 2001. She is the youngest foundling to appear on the show. Also looking for answers is Chris who, at three months old, was dropped off at a childminder's near Kings Cross in London, 62 years ago. He still needs to know who his birth family is and why nobody ever returned to pick him up.