When four year old Gemma D'Arcy develops leukaemia, and other children in the neighbourhood do so too, the parents suspect a nearby nuclear power plant may be the cause. Set in Seascale, Cumbria, England, and based on real events.

Docudrama set in Seascale, Cumbria, England, about the true story of Gemma D'Arcy's fight for life against leukaemia - and the struggle by a team of lawyers to find out whether the state-owned nuclear power plant Sellafield, caused the illness in her and other children. The programme follows London solicitor, Martyn Day, as he battles to piece together evidence in a search for the truth.—Anonymous