<p>Dan heads to Sandwich in Kent to meet Blaise and Jenny, Peta’s eldest brother and sister-in-law. He hears where Peta got her stoicism from and learns that Blaise was never told that the FBI failed to find the graves.</p><p>Back in the States, Detective Amy Crosby hands over files that contain a vital clue to what happened on the Justin B – and raise the possibility of there being two more victims, ‘the Vikings’</p><p>Meanwhile, Annie finds the Bombero who pulled the bodies from the water in ’78. What he tells her only leaves us asking more questions - and there’s a troubling inconsistency that clashes with Vince and Russell’s account.</p><p>The episode ends with a startling breakthrough that gives us hope we could actually locate the graves of Chris and Peta that the FBI failed to find.</p><p>Find out more about the case here: www.bbc.co.uk/paradise</p>