A trucker leaves a tape about an appalling crime. Three words echo - Dig it Up. It leads one couple to the story of an illegal million-tonne dump in the UK.

In this BBC Radio 4 podcast series, investigative journalists Dan Ashby and Lucy Taylor deep-dive into one of the worst environment crimes in UK history. They uncover missing documents, fears of toxicity and allegations of organised crime, and realise they've stumbled into something much bigger. As they pick at the threads of one crime, they begin to see others. Could Britain be the home of a new mafia, getting rich on our waste?

In a thrilling ten-part investigation, the husband-and-wife duo dive into a criminal underworld, all the time following clues left in a deathbed tape. They’re driven by one question - what did the man in the tape know?

Presenters and Producers: Dan Ashby and Lucy Taylor
Assistant Producer: Tess Davidson
Original Music and Sound Design: Phil Channell
Sound Design and Series Mixing: Jarek Zaba
Executive Producers: Phil Abrams and Anita Elash
Commissioning Editor: Dan Clarke

A Smoke Trail production for BBC Radio 4