As the first American GIs arrive to build an airbase near Hastings, the murder of a barmaid further strains already-tense relations between the locals and the Yanks.

As the first American GIs arrive to build an airbase near Hastings, the murder of a barmaid further strains already-tense relations between the locals and the Yanks.

A top-secret experiment in biological warfare goes horribly wrong, complicating a murder investigation and threatening the life of Foyle's faithful driver, Sam.

A top-secret experiment in biological warfare goes horribly wrong, complicating a murder investigation and threatening the life of Foyle's faithful driver, Sam.

The death of a woman in a munitions factory becomes linked with the murder of Milner's estranged wife as he falls under suspicion and Foyle strives to clear his name. Guest stars include John Nettleton (Yes, Minister).

The death of a woman in a munitions factory becomes linked with the murder of Milner's estranged wife as he falls under suspicion and Foyle strives to clear his name. Guest stars include John Nettleton (Yes, Minister).

Foyle has his hands full dealing with illegal gambling, sabotage, and his needy goddaughter who shows up on his doorstep with her traumatized son. Guest stars include Kevin Doyle (Mr. Molesley in Downton Abbey).

Foyle has his hands full dealing with illegal gambling, sabotage, and his needy goddaughter who shows up on his doorstep with her traumatized son. Guest stars include Kevin Doyle (Mr. Molesley in Downton Abbey).

At a time when German nationals are being interned in British camps, the beautiful Austrian wife of a local magistrate is resented by 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.

At a time when German nationals are being interned in British camps, the beautiful Austrian wife of a local magistrate is resented by 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.

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.

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.

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.

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.

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.

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.

Sam's boarding house is bombed and valuables disappear, alerting Foyle to an organized ring of looters. After the father of one of the suspected looters is found dead on the beach, Foyle and Milner's investigation leads them into conflict with British efforts to secure the donation of American Aid and the crucial start of Lend-Lease in the war.

At the London headquarters of a multinational company, a young secretary plummets to her death. In Hastings, a member of the Home Guard is killed. Foyle and Milner discover how these deaths are linked and how money talks a universal language, even in wartime.

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.