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.