The life of Zuzia, whose dad, Piotr, works on the railways, completely changes when Lampo, an extraordinary traveling dog, enters her life. The eccentric shepherd dog, whose train trips become an Internet sen-sation, immediately turns into the best friend of the heart–sick girl. Unfortunately, the stationmaster, jealous of Lampo’s fame, tries everything to drive the dog away from his station. Once he succeeds, the health condition of Zuzia, separated from her be-loved companion, deteriorates.