As German troops begin their campaign to "relocate" all the Jews of Denmark, 10-year-old Annemarie Johansen's family takes in Annemarie's best friend, Ellen Rosen, and conceals her by pretending she's part of the family. Then, through Annemarie's eyes, readers watch as the Danish Resistance smuggles almost the entire Jewish population of Denmark - nearly 7,000 people - across the sea to Sweden.