Small and sullen, Aron is eight years old when his family moves from a rural Polish village to hectic Warsaw. At first gradually and then ever more quickly, his family's opportunities for a better life vanish as the occupying German government imposes harsh restrictions. Officially confined to the Jewish quarter, with hunger, vermin, disease and death all around him, Aron makes his way from apprentice to master smuggler until finally, with everyone for whom he cared stripped away from him, his only option is Janusz Korczak, the renowned doctor, children's rights advocate, and radio host who runs a Jewish orphanage. And Korczak in turn awakens the humanity inside the boy.