The following is a brief, official synopsis. For a detailed account of the episode, click here.
In the final episode, Detective Chief Superintendent Foyle and Detective Sergeant Milner are called to investigate the discovery of a stabbed body found in the aftermath of a bombing raid. The dead man is identified as Graham Davies (Tom Bowles) and the one lead is a gold locket he was clutching in his hand.
Andrew, Foyle's RAF pilot son, returns from his training. He is posted to Hastings in a Top Secret operation that tests his prowess as a Spitfire pilot against the new RDF system - radar.
As he becomes part of the team, Andrew realises that all is not well - and that the unease among the girls who work as plotters at the radar station has something to do with the senior officers, Wing Commander Keller (Anthony Calf) and Group Captain Graeme (Roger Allam) - and with an event that took place some months before.
Milner eventually traces the locket to Harold Smith (Geoffrey Hutchings) and his wife Enid (Eileen Davies). It belonged to their dead daughter Lucy, who served with the WAAF, and they claim it was stolen from their Eastbourne house a few weeks earlier.
Sam Stewart has to deal with the arrival of her father, the Reverend Iain (Stephen Moore). He has decided to put a stop to her work as Foyle's driver and take her home.
Events build to a climax when Andrew is arrested for treason and Foyle has to find him, torn between his desire to help his son and his duty as a policeman. A second murder complicates matters further and, as the truth emerges, Hitler begins his Eagle Day bombing raids…
In the final episode, Detective Chief Superintendent Foyle and Detective Sergeant Milner are called to investigate the discovery of a stabbed body found in the aftermath of a bombing raid. The dead man is identified as Graham Davies (Tom Bowles) and the one lead is a gold locket he was clutching in his hand.
Andrew, Foyle's RAF pilot son, returns from his training. He is posted to Hastings in a Top Secret operation that tests his prowess as a Spitfire pilot against the new RDF system - radar.
As he becomes part of the team, Andrew realises that all is not well - and that the unease among the girls who work as plotters at the radar station has something to do with the senior officers, Wing Commander Keller (Anthony Calf) and Group Captain Graeme (Roger Allam) - and with an event that took place some months before.
Milner eventually traces the locket to Harold Smith (Geoffrey Hutchings) and his wife Enid (Eileen Davies). It belonged to their dead daughter Lucy, who served with the WAAF, and they claim it was stolen from their Eastbourne house a few weeks earlier.
Sam Stewart has to deal with the arrival of her father, the Reverend Iain (Stephen Moore). He has decided to put a stop to her work as Foyle's driver and take her home.
Events build to a climax when Andrew is arrested for treason and Foyle has to find him, torn between his desire to help his son and his duty as a policeman. A second murder complicates matters further and, as the truth emerges, Hitler begins his Eagle Day bombing raids…