Sarah and Kirsty call in the big guns: DNA. A strong match comes up: a woman who shares 28% of Sarah's DNA. Is it Nellie's first child? Eventually, Fran, the genealogist, suggests the match could be an aunt, and Sarah works up the courage to send a message to this mystery relative.

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"To know that I have two people who did really want me - if he's mentally disabled and she was, they probably wanted me but they just couldn't - for the first time I feel like I belong properly." - Sarah

Sarah and Kirsty call in the big guns: DNA. Working with a genealogist, they dig through ancestry records to try to find Sarah's relatives.

A strong match comes up: a woman who shares 28% of Sarah's DNA. Is it Nellie's first child? But the woman's profile is private and all of Sarah's insecurities surface - do her family want nothing to do with her?

Eventually, Fran, the genealogist, suggests the match could be an aunt, and Sarah works up the courage to send a message to this mystery relative.

Go to this episode on rnz.co.nz for more details