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.

When a British food corporation signs a secret agreement with the Nazis to provide essential food services to the enemy during wartime, murders result.

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.