38-year-old Clare was always told that her father was a British soldier stationed in Belfast during the Troubles. Now, Clare wants to solve the mystery of his identity.Leigh only discovered that he might have a secret sister after his mum passed away. He now wonders if his sister is still alive.It was only when Jenna and Ryan were pregnant that they realised they both carry a genetic mutation that could be deadly if passed on to their kids. They're hoping that DNA testing can help.