Glasgow, 1974 - a time of power cuts, strikes and the three-day week. Twelve-year-old Ginger Bannerman is playing in the local woods when he stumbles across a gunman in hiding. The man has incriminating evidence of police corruption and forces Ginger to steal a tape recording from a major criminal's flat. But when Ginger discovers that his dad, a police constable, is mentioned on the tape, his world is turned upside down. With both the gunman and the criminal in hot pursuit, he must prevent the tape falling into the wrong hands if he's going to save himself and his family. Things have suddenly got very serious.