Who Do You Think You Are (2004)

Actress Lesley Sharp was adopted when she was just five weeks old. She traced her birth mother over twenty years ago and discovered that she was the result of her mother's affair with a married man. Now, knowing that her biological father has passed away, Lesley is ready to find out more about him. She traces her half siblings and follows her paternal line back to discover that her great great grandfather fostered Barnardo's children. Lesley follows the trail of one of them, George Maybury, to Canada to meet George's grandson and to find out what kind of home her great great grandfather provided.