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 PouletFreddy…. Jonathan ForbesAmina.... Emma Fryer The Architect.... Siân Phillips The Reporter.... Kathy ClugstonThe Medic.... Stefan AdegbolaFrances.... Juno Robinson

Directed by James RobinsonA BBC Cymru Wales Production