The German wife of a rich and influential aristocrat exempted from wartime internment is found decapitated in the midst of anti-German feeling.
With the English army trapped in France and a German invasion imminent, a Nazi sympathizer is murdered during a pro-Facist meeting at a country hotel.
Foyle investigates the suicide of a pacifist and death threats to the judge who ruled against his conscientious objector status.
Foyle investigates a man found with a knife in his stomach in a bombed out building while son Andrew gets involved in a top secret radar program.
After Foyle is a guest at a friend's home at a dinner for an important American diplomat, a suicide victim and German agent both are discovered near the house.
Sam volunteers to go undercover to discover how rationed gasoline is being stolen from a fuel depot, and Andrew becomes a suspect in a murder case.
When a British food corporation signs a secret agreement with the Nazis to provide essential food services to the enemy during wartime, murders result.
Foyle's investigation of the death of a young black marketeer and stolen food is interrupted by his suspension on charges of sedition.
February 1941: Foyle again pursues a position that would allow him to contribute more to the war effort. But a local murder investigation sidetracks this endeavor as Foyle finds himself caught between rival spy organizations.
February 1941: When a local manor house is commandeered for use as a special burn unit for treating injured RAF pilots, Foyle is called in to investigate a series of strange accidents.
April 1941: Foyle questions three Land Army girls about a murder that occurs on a Hastings farm.
A.C. Rose orders Foyle to delegate his investigation of black marketing ring and personally look into the possibly seditious acts of a Socialist activist.
American troops arrive in Britain and the Corps of Engineers building an airstrip on a Hastings farm is met with resentment.
Foyle investigates the a mysterious disease affecting local farm animals and looks into the arrest of a pacifist accused of stabbing a war hero.
The apparently accidental death of a young woman in a munitions factory becomes linked with the station house itself.
Foyle has his hands full dealing with illegal gambling, sabotage, and his needy goddaughter who shows up on his doorstep with her traumatized son.
The escape of a Russian POW sets off a chain of events that leads to murder and rekindles a conflict between Foyle and his former superior.
Foyle goes head to head against the might of the US army when a local girl is found murdered and the finger of suspicion points to a black GI at the US military base.
Foyle battles to save a young man accused of high treason from the executioner's noose in a case that will shatter his personal world to the core.
MI5 suspects British atomic research has been infiltrated and asks Foyle to look into whether a Russian spy network could be at work in the heart of London.
Foyle's investigation into the death of a nameless Russian leads to a mysterious military facility and the discovery that the victim was a spy with dangerous connections to British intelligence.
Foyle is drawn into the bizarre murder of an ex-Nazi defector and leading expert on Soviet intelligence who had been working for MI5.
Foyle is drawn into the world of corrupt Nazi businessmen when a university professor is found brutally murdered in a London park.
When the son of a high-profile Jewish businessman is attacked in the grounds of a university, Foyle wonders whether the attack was racially motivated.
Foyle must find out if there was a traitor within the SOE after Hilda Pierce is shot in an attempted assassination.
Foyle, now working for British Intelligence, is drawn into the world of corrupt Nazi businessmen when a London university professor is found murdered.
Tasked with ensuring security at a high level Palestinian conference, with signs that a plot to bomb the conference maybe under way, Foyle faces a race against time to uncover not only the truth, but where the truth lies. Meanwhile Sam is determined to help a young boy in Adam’s constituency when she realises his life may be in danger because he cannot afford hospital care.
Foyle must find out if there was a traitor within the SOE after Hilda Pierce is shot in an attempted assassination.
