A girl with auburn hair looks anxiously out of the train window, watching the mountains of Europe pass by.

War is on the horizon at home, and Kirsty finds herself heading to neutral Hungary to help in a school for Jewish children.

Little does she know that in leaving everything behind, she is about to find the most precious gift of all - a true friend in school pupil Anna. 1943. When the Nazis invade Budapest, Kirsty and Anna are on their own, and Kirsty worries desperately for her Jewish friend.

What lengths must they go to in order to survive, and, when they are separated, can the guiding light of friendship bring them back to each other?