Berlin, 1948. A city besieged. A boy reaches for the sky.Otto Hartmann would do anything to be a pilot. With Berlin blockaded by the Soviets, the Americans fly to the rescue and Otto's captivated by the matinee-idol pilots dropping chocolate for the city's hungry kids. But never mind the Hershey bars - he wants to be up there with them.Now Otto has to choose between those he loves or flying from a ruined city where danger lurks around every corner. And nobody is who they seem, but children are battling to survive in a desperate war-torn city.