May 1940. At a time when German nationals are being interned in British camps, the beautiful Austrian wife of a local magistrate is resented by the locals. When she is found murdered, a swastika painted on a nearby tree, Foyle realizes the seemingly peaceful Sussex town harbors any number of suspects.
May 1940. The arrest of a young girl on a sabotage charge brings Foyle into contact with a group of English Nazi sympathizers. Shots are fired at the group's charismatic leader, but it is the hotel owner who dies. Foyle investigates the murder and uncovers a plot to smuggle a vitally important letter to the enemy.
June 1940. A conscientious objector dies in police custody, setting in motion a series of suspicious deaths and a complicated puzzle for Foyle. When Foyle has pieced together the truth, the entry of Italy into the war engulfs a close friend in tragedy.
August 1940. In the course of investigating a murder, Foyle uncovers a plot to steal art treasures being moved from the local museum to Wales for safekeeping. Meanwhile, Foyle's son flies his first mission as a Royal Air Force pilot and is accused of passing top-secret information to the enemy.
As WW2 rages around the world, DCS Foyle fights his own war on the home-front as he investigates crimes on the south coast of England. Foyle's War opens in southern England in the year 1940. Later series sees the retired detective working as an MI5 agent operating in the aftermath of the war.
