Nacha is living a normal life in Old Town, Warsaw, when the Nazis invade Poland. After months of heavy shelling, her family believes things can't possibly get any worse. Then the city falls, and she and her family find themselves faced with a level of antisemitism they've never experienced before. They're locked into a ghetto, and she fears they'll never see freedom again. When the Nazis begin rounding up Jews, Janek, a Polish Catholic teenager, doesn't let the warnings of executions for those caught helping Jewish people stop him. With his neighbors now living in the ghetto, he resolves to take them food and supplies. It isn't long before he finds love in the dark shadows of the ghetto walls, and his own commitment to save his neighbors grows.