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How do the McCanns deal with the pain of not knowing what has happened to their daughter? And how do they try to create a normal life for the sake of Madeleine's brother and sister, four-year-old twins Sean and Amelie?
With the search now shelved by the Portuguese police - and no officers in Portugal or the UK dedicated to the case - the investigators (former police officers from the UK) speak about their interest in a series of important sightings in and around the Ocean Club complex, Praia da Luz, in the days leading up to May 3rd 2007.
For the first time, Gerry McCann returns to Apartment 5a of the Ocean Club complex, where he last saw his daughter. Also returning to Portugal are Jane Tanner and Matthew Oldfield, two friends from the group known as the 'Tapas 7', who were on holiday with the McCanns at the time.