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Based on a decade-long investigation into England's water companies, and telling the real stories of whistleblowers and victims who believe their lives have been destroyed after encountering sewage polluted water, Dirty Business is a major new factual drama investigating one of the biggest potential corporate scandals in British history.
Dirty Business follows the story of two unlikely detectives, who notice that the fish in the river running through their idyllic Oxfordshire hamlet are dying. They contact their…
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Season 13 episodes · 2026+
Episode 1 · 23 Feb 2026 · 21:00 · 65 min
The Accidental Detectives
When retired detective Ash Smith and Oxford professor Peter Hammond notice the water in their local river has turned brown, they begin to ask questions, leading to the start of a 10-year investigation.
Episode 2 · 24 Feb 2026 · 21:00 · 65 min
Ecocide
Continuing the fact-based drama about retired detective Ash Smith and Oxford professor Peter Hammond and their 10-year investigation into the sewage scandal. The drama also follows the Preen family, who went in search of answers after their eight-year-old daughter died after playing on a beach where a nearby pipe had been discharging.
Episode 3 · 25 Feb 2026 · 21:00 · 65 min
The Whistleblower
Fact-based drama about a retired detective and an Oxford professor and their investigation into the sewage scandal. The story also follows surfer Reuben, who believes his chronic illness, Meniere's disease, is a result of surfing in polluted water.