A Czech agricultural student, Šimon Plánička, arrives at the small South Bohemian town of Hoštice, and joins the local JZD (agricultural co-op) with the intention of trying out his experiment regarding the "Milk yield of cows in regards to a cultured environment". He runs into difficulty with the directorship of the JZD, but he finds them eager to help once they hear he's the son of the local agricultural commissioner, as his last name is also Plánička. Blažena Škopková is given the task of finding out how things are looking. However everything is complicated by the jealousy of Blažena's boyfriend Venca.
Pavel Kikinčuk
as Šimon
Broněk Černý
as Venca Konopník
Veronika Kánská
as Blažena
Petra Pyšová
as Miluna
Helena Růžičková
as Marie Škopková
Stanislav Tříska
as Škopek
Erna Červená
as babička
Martin Šotola
as Jirka
Miroslav Zounar
as předseda JZD
Jiří Lábus
as živočichář Béda
Pavel Vondruška
as tajemník Mosna
Jaroslava Kretschmerová
as Evík