Growing up in 1943 war-torn England, thirteen-year-old Alice and her older sister Louise are members of a centuries-old spy clan, but when Louise decides to spy for the enemy, their bond is changed forever.

DJ wants it all: the car, the girl and the truth about his grandfather. After jetting across the Atlantic, DJ follows a series of obscure clues and symbols that lead him deep into the world of British espionage, complete with guns, double agents and a vintage E-type Jag.