By Matthew Broughton Episode five of the conspiracy thriller's final series. Armed with the co-ordinates of the sunken ship, Helen and Freddy head down beneath the waves in search of the truth. But dark secrets await them in the deep abyss of the ocean. A gripping thriller, Tracks was the first drama to hit the top of the iTunes podcast chart back in 2017. It went on to win Best Sound (BBC Audio Drama Awards) and Best Fiction (British Podcast Awards). Now Tracks is back with a fifth and final 9 part series. All four previous series of Tracks are available now in full on BBC Sounds. Helen… Olivia Poulet Freddy…. Jonathan Forbes Valerie Peluso.... Juliet Cowan Barbara.... Barbara Flynn Directed by James Robinson A BBC Cymru Wales Production