Through groundbreaking, familial DNA technology, the team in ‘02 manage to locate the killer. However, without 100 per cent certainty, Paul may have to rethink his approach.
               
              
                Casts: 
                Philip Glenister, Steffan Rhodri, Oliver Ryan, Karen Paullada, Richard Corgan, Richard Elfyn, Walter van Dyk, Keith Allen, Calista Davies, Richard Harrington, Priyanga Burford, Aneurin Barnard