A red haired Petra is not your ordinary girl - in addition to her regular "girly" interests she's also a goalie in boys football team.

Even under socialism, it was not advisable to cross the line between rich and poor. When a mason's apprentice falls in love with a girl from a wealthy family who lives in a magnificent villa during his first thug, he can hardly expect his feelings to be fulfilled. The schematic and lifeless depiction of the young generation has hardly contributed to a truer view of contemporary reality.

Ten-year-old David joins a sailing club. He trains hard and helps repair the sailing boats, but people have to take turns actually sailing. The club chairman Vala wants David to sail with his son Olda. Olda's previous team mate Béda has grown too fast, but with little David Olda could win a place on the regatta to Finland. Olda is arrogant and accustomed to winning with little effort; he bullies David and calls him "Greenhorn". He makes David his servant and blames him when things go wrong.

Matej and Jenda, two of the eight children of the poor Pelc family in the Giant Mountains, help in a glass works where the oldest brother Francek works. They hide into a tub not to be seen by supervisors checking on the ban of children labor. They miss the Epiphany carol (songs and treats door-to-door) and all neighbor village boys again on them in all the neighbor houses. On their way home they are passed by a fast moving big man with a large backpack. The boys send the customs officers, who are pursuing the strange man, to the opposite direction. The man then thanks them and rewards them the next day. Based on fairy-tales and legends the boys think the man is Krakonos (the giant living and ruling in the Giant Mountains).