Two families, Sebkovi and Krausovi, are celebrating Christmas, but not everyone is in a good mood. The teenage kids think that their fathers are totally stupid, and the fathers are sure that their children are nothing more than rebels, hating anything they say.

The original television production based on the story about the fresco on the Old Town Hall in Bratislava. It is linked to medieval Bratislava, its customs, settlement, relationships and tells the story of a beautiful and brave widow and a greedy sworn. In their unequal struggle for the truth, the devil of Bratislava intervenes - and according to legend, he still oversees justice in the city.

The Lord of the Springs finds the abandoned infant Pramek and unjustly neglects King Zoran. However, his daughter Dúhenka loves Zoran and becomes his wife despite her father's prohibition. The ruler of the springs becomes angry and deprives Zoran's kingdom of water as punishment. After the birth of her daughter Rosenka, Rainbow decides to sacrifice herself to save the kingdom and returns to the sky. Zoran and his daughter yearn in vain for years to meet Dúhenka. Rosenka grows up, she is fit for marriage, but she has one condition for the suitors: they must obtain rainbow water. But only Pramko can do that. And so the Ruler of the Springs must once again struggle with human emotions, and Rosenka and Pramko face many obstacles before they can convince him of the power of human love.

A counselor in the summer camp suddenly finds herself loosing the bikini top while bathing in the lake. And all the teenagers around get excited...