In 1941 in occupied Paris, brothers Maurice and Joseph play a last game of marbles before running home to their father's barbershop. This is the day that will change their lives forever. With the German occupation threatening their family's safety, the boys' parents decide Maurice and Joseph must disguise themselves and flee to their older brothers in the free zone.

Surviving the long journey will take every scrap of ingenuity and courage they can muster. If they hope to elude the Nazis, they must never, under any circumstances, admit to being Jewish.

The boys travel by train, ferry,...