Kendal Guthrie could start an argument in an empty room, but who killed him, and why?

The Crime Review Team was formed in Wiltshire, England, to investigate old cold cases. Headed by Gus Freeman, the team has successfully solved several cases, using old witness statements plus fresh clues.

Kendal Guthrie argued with five people in a remote country pub on the night he died. How could the killer have reached Guthrie's farm ahead of him that night? It seemed impossible. Gus Freeman believes that distance, time, and locations are the key to solving the mystery.

A member of the Crime Review Team has a hunch and ventures onto Salisbury Plain alone. But the Salisbury Plain is a dangerous place to be after dark.