Episodes (23 available)

Investigative duo Dan and Lucy join Michael Sheen to dig up a chemical secret.

A box of evidence contains a witness’s warning: a chemical is coming for all of us.

A film star records the witness’s final account. Secret chemical tests are revealed.

'They would have killed me.' Was there a conspiracy to silence the witness?

A child born without eyes. In a town in Alabama, what did one chemical do?

The film star Michael Sheen digs around dumps, as communities wonder what’s hidden nearby.

Dan and Lucy test the earth, and discover whether Douglas’ prophecy has come true.

Scientists warn ‘something out there’ is causing illness. Could it be PCBs in our food?

Douglas warned of a chemical cover-up. Could it be true? What do those in power know?