As the enormously popular mystery series returns, World War II is over, but the Cold War simmers in 1946 London. DCS Christopher Foyle (Michael Kitchen, OUT OF AFRICA) has retired from police work when Britain's secret intelligence service compels him to join it's ranks. Reunited with his former colleague, newlywed Sam Wainwright (HONEYSUCKLE WEEKS), Foyle faces newbut no less deadly threats in the world of spies and counterintelligence.