In his last days, Joe thought the pollution was putting lives at risk. His friends were willing to break the law to find out. Years on, are deadly cancers rising?

"All you have to do... is dig it up."

A trucker’s deathbed tape plays out. It’s urgent, desperate.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 - the secret dumping of a million tonnes of waste near a city. But when they uncover missing documents, fears of toxicity and allegations of organised crime, they 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 DavidsonOriginal Music and Sound Design: Phil ChannellSound Design and Series Mixing: Jarek ZabaExecutive Producers: Phil Abrams and Anita ElashCommissioning Editor: Dan Clarke

A Smoke Trail production for BBC Radio 4