A friend casts doubt on Douglas’ honesty. Could he have lied? Dan and Lucy uncover unsettling truths, and begin to question what’s real. They've tested the chemicals - now it is time to test Douglas. And Michael Sheen gives his verdict.

Buried is the award-winning true-crime series digging into some of the most disturbing environmental stories in history. In this new investigation, reporters Dan Ashby and Lucy Taylor team up with the film star Michael Sheen. Together, they dig into the unseen files of a man who said he was beaten up and put under police protection, after alleging that a chemical had contaminated the food chain.

Produced and presented by Dan Ashby and Lucy TaylorResearch by Georgie StylesAdditional research by Grace NichollsSound design and mixing by Jarek ZabaOriginal music and sounds by Phil ChannellExecutive Producers: Philip Abrams and Anita ElashCommissioning Editor: Dan Clarke

A Smoke Trail production for BBC Radio 4