By Matthew Broughton

The last ever episode of the conspiracy thriller.

As time runs out for Helen, the truth about Arca Island is revealed and she's offered an impossible choice.

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 Amina.... Emma Fryer The Architect.... Siân Phillips The Reporter.... Kathy Clugston The Medic.... Stefan Adegbola Frances.... Juno Robinson

Directed by James Robinson A BBC Cymru Wales Production

By Matthew Broughton

Episode eight of the conspiracy thriller's final series.

As the search for Arca Island continues, Helen is offered fresh hope that her life could be saved.

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 Professor Manuel.... Peter Marinker Amina.... Emma Fryer Frances.... Juno Robinson

Directed by James Robinson A BBC Cymru Wales Production

By Matthew Broughton

Episode seven of the conspiracy thriller's final series.

Helen gives up on her quest and hides away with Frances in her old house in Pembrokeshire. But sometimes the darkest dangers lurk inside.

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 Older Frances.... Scarlett Courtney Frances.... Juno Robinson

Directed by James Robinson A BBC Cymru Wales Production

By Matthew Broughton

Episode two of the conspiracy thriller's final series.

Helen and Freddy drive back from Scotland with what could be proof that the sunken ship exists - the severed hand they found on the beach. But on the motorway they're being followed. And disaster awaits.

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 Amina.... Emma Fryer Rebecca.... Carys Eleri Frances.... Juno Robinson

Directed by James Robinson A BBC Cymru Wales Production

By Caroline Horton.

Episode three of the gripping conspiracy thriller

Dr Helen Ash receives a call from Eddy’s daughter Lucy - there is a survivor, she is sick, and Lucy is hiding her in her University halls of residence.

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 Lucy…. Kiran Sonia Sawar Joanna.... Beatrice Engel Naani… Sindhu Vee Frances…Juno Robinson Lead writer.... Matthew Broughton

Directed by John Norton A BBC Cymru Wales Production

By Katherine Chandler.

Part 6 of the conspiracy thriller's final series.

An odd detail on the uniform of a drowned soldier leads Helen further down the rabbit hole. At a military base in North Wales she finds a new companion and a warehouse full of secrets.

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 Tec…. Dino Kelly Linda... Maria Pride Irene… Heather Craney The Assistant...Tom Mumford Frances… Juno Robinson

Series created by Matthew Broughton Directed by John Norton A BBC Cymru Wales Production

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

By Lucy Catherine.

Part four of the conspiracy thriller's final series.

A strange cannister recovered from the sunken ship contains seeds from the global seed bank. Helen and Freddy head to Svalbard, a remote island in the Arctic circle, to find out more. As storm clouds gather, nothing is quite as it seems in the darkening North.

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 Oskar … David Menkin Farouk... Amir El-Masry Henning... Dino Kelly Lead writer.... Matthew Broughton

Directed by James Robinson Produced by John Norton A BBC Cymru Wales Production

By Matthew Broughton

The final series of the conspiracy thriller begins.

Dr Helen Ash is coming to terms with the fact she has just 9 months to live, when she’s emailed a video of a boat mysteriously sinking in stormy seas. And the email is from her dead father.

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 Eddy…. Mark Bonnar Lucy…. Kiran Sonia Sawar Yvonne…. Bettrys Jones Cancer Specialist…. Finlay Robertson

Directed by James Robinson A BBC Cymru Wales Production

Final part of the conspiracy thriller by Matthew Broughton. Starring Romola Garai and Jonathan Forbes.

As the final piece of the puzzle falls into place, Helen comes face to face with the fish.

A gripping thriller, chart-topping podcast and winner of Best Sound (BBC Audio Drama Awards) and Best Fiction (British Podcast Awards), now Tracks is back with a 10 part headphone-filling thrill-ride.

Helen…. Romola Garai Freddy….. Jonathan Forbes Julia…. Georgia Henshaw Doctor.... Marc Danbury

Directed by James Robinson A BBC Cymru Wales Production

Part nine of the conspiracy thriller by Matthew Broughton. Starring Romola Garai and Jonathan Forbes.

Helen is confronted by the notorious Valerie Peluso.

A gripping thriller, chart-topping podcast and winner of Best Sound (BBC Audio Drama Awards) and Best Fiction (British Podcast Awards), now Tracks is back with a 10 part headphone-filling thrill-ride.

Helen…. Romola Garai Freddy….. Jonathan Forbes Valerie.... Juliet Cowan

Directed by James Robinson A BBC Cymru Wales Production