Nighthawk

A lone German bomber crosses the east coast of Britain on a moonless night in the long hot summer of 1940. The pilot picks up the silver thread of a river and, following it to his target, drops his bomb over Cambridge's rail yards. The shell falls short of its mark and lands in a maze-like neighbourhood of terraced streets on the edge of the city's medieval centre. DI Eden Brooke is first on the scene and discovers the body of an elderly woman, Nora Wylde, beside her shattered bed in a terrace house on Elm Street.

May 1942. Thousands of American GIs are stationed across eastern England building airfields to bomb Germany. Cambridge is a 'liberty town'—a hot spot for 'Yanks' on leave. DI Eden Brooke is called to the aerodrome five miles east of the city when the remains of an airman, identified by his dog tag, are uncovered as workmen extend the runway. It's clear the victim has been buried for decades. Brooke discovers the base was used to train US pilots in the Great War—a quarter of a century earlier.