Mark hopes to find his birth mother, and Stella looks for the daughter she gave up 50 years ago.

Peter Arundel and Maureen Saville have both been searching for their birth mothers.

A woman is determined to find the older sister that she has never met, while a daughter wants to be reunited with her father, whom she last saw when she was five years old.

Groom-to-be Bradlee Allen from south-east London hopes to track down his father before his wedding day in one week's time. The pair last met 10 years ago, when the estranged dad was turned away by his then 14-year-old son during a difficult period in the youngster's life. Bridget Eyles from Saffron Walden in Essex also asks for help in finding her birth mother after discovering at the age of 11 that she was adopted.

When she was 30, Fiona Dunn found out that she had a younger sister her family had kept secret from her. Three decades later she hopes to meet her sibling and make up for lost time. Anne Clegg enjoyed a happy childhood but always longed to know her birth mother, who gave her up for adoption 48 years ago. Anne has done everything in her power to track down her natural mum, but to no avail, so she calls on Davina McCall and Nicky Campbell for assistance.

James Kynoch was six when he discovered the man he called `dad' was not his real father, his parents having divorced when he was just two. After years of getting no answers, he needs to finally find the man who last saw him as a toddler. Scarborough woman Lisa Nortcliff, 48, also asks for help to solve the mystery of her father. When she was 10, she discovered the woman she thought of as her older sister was actually her mother, and that her dad had been forbidden from seeing her once the pregnancy was discovered. She has spent years searching for this mystery man but is no closer to finding him. Davina McCall and Nicky Campbell aim to succeed where she has failed.