In 1948 on the Gardno lake near Szela village 21 girl scouts drowned. It was supposed to be a dream day. The girls wanted to see the sea. That morning they went to church, sleep-deprived – the previous night they had sat for a long time by the bonfire, busy discussing an old legend about princess Wanda who drowned in the rapid currents of Vistula river.

Julia's life is wonderful. She lives in the United States, goes to a great school, sings, and runs a popular online channel. Just an "American dream". One day, when her parents decide to return to Poland, everything will change. Julia will have to find herself in a new school - Millennium High School, ruled by "teams": athletes, nerds, vloggers, musicians, fans of a beautiful look, and VIPs, led by the self-righteous Victoria. Together with Magenta, the school's outsider, and Kuba, the unfulfilled musician, they will create a group of the excluded. An annual music competition will be held at school soon, in which the winners will be a scholarship and a trip to the United States. Julia cannot miss this opportunity.

In a Polish village in the early 2000s, young motocross riders spend the summer immersed in their passion. The idyll is violently disrupted when the infamous Henryk returns to the village. His arrival sets off a chain of events that leads to an inevitable confrontation.