Annička Jesenská inherits her late uncle’s dental practice in the Austro-Hungarian border town of Medov, only to find locals loyal to a rival dentist allied with the schoolteacher and a sugar-candy magnate. Determined to help children, she discovers an exotic Peruvian herb that makes treatments painless and, with the support of local kids, challenges the entrenched interests to improve oral health in the community.

In the snowy Giant Mountains at the end of the German occupation, a group of child heroes rescue a downed French pilot. Their actions resemble the principle of the well-known 'telephone game' – the pilot is passed between mountain villages like a secret message – secret delivery – at school. But the children play a highly risky game. They are confronted by deadly soldiers of the occupying army, they must outwit traitors and informers and, last but not least, survive in the harsh conditions of winter in the mountains.