THE FRENCH DROP—Investigating a suspicious death, Foyle gets caught up in the rivalry between the established spy agency MI5 and the newly created SOE.ENEMY FIRE—Sabotage, murder, and adultery at a pioneering RAF hospital brings Foyle face to face with the devastating physical and emotional consequences of war.THEY FOUGHT IN THE FIELDS—A murdered farmer and the crash landing of a German plane present a confusing case, especially as spring is in the air and even Foyle is not immune to a whiff of romance.A WAR OF NERVES—An unexploded bomb at a busy shipyard leads to a startling discovery in a complex story of greed and politics.