The story centers around a group of children, led by Leontinka (Zuzana Vejvodová) and Olda (Lukáš Jenčík). Father of Leontinka (Jan Kanyza) manages the local Deer Park with an invaluable breed of white deer. A series of mysterious events unfolds, threatening the deer. Leontinka and Olda, who is in turn a son of a local police officer (Pavel Zedníček), search for the villain. The list of suspects includes young fugitive (Michal Suchánek), former head of the deer park (Martin Růžek), former poacher (Jiří Sovák), manager of local restaurant (Oldřich Vlach), designer planning a motorway (Miroslav Etzler) and a couple of others. Stella Zázvorková performed a local widow, as well as Jana Hlaváčová, who works hard to repay financial debt the manager of restaurant. Ondřej Vetchý performed a lover of local teacher. Some parts of the story were narrated by Viktor Preiss (voiceover).
Filming location included South-Bohemian town Třeboň and Deer Park Žehušice near Kutná Hora. The series was screened on Czechoslovak Television, on German ZDF, Super RTL and Kinderkanal and several times on Czech Television as well.