13-year-old Joelle Breton stumbles across Indian-born RAF pilot Mohinder Singh when his plane crashes in occupied France and it's up to her and her parents to hide him from the Nazis. After all, her parents are brave members of the French Resistance and will do everything they can to help get Mohinder back to Britain. But when they are betrayed and tragedy strikes, Joelle and Mohinder will have to act fast if they are ever to evade the enemy.