An aerial photographer spots a corpse in a field. When DI Ken Johnson investigates he calls in Dangerfield to supervise the forensic examination.

When the body of a naked woman is found by a canal, the police must discover who she is, when she died and how her body got there.

Ken Jackson turns to Paul Dangerfield and Terri Morgan to find the crucial piece of evidence that will clear his name when a suspect dies while in police custody.