Second half of the 1970s. A few teenagers from the town of Ustrzyki Dolne, led by a charismatic and undisciplined student of the local school, Siczka, decided to become punks and get into punk rock and start a band called KSU.
Ignacy Liss
as Eugeniusz 'Siczka' Olejarczyk
Maciej Piotrowski
as Bogdan 'Bohun' Augustyn
Igor Paszczyk
as Wojciech 'Ptyś' Bodurkiewicz
Bartłomiej Deklewa
as 'Tomkas'
Piotr Głowacki
as Captain Jerzy Majak
Szymon Kukla
as Waldemar 'Burek' Kuzianik
Filip Łannik
as Bogdan 'Tuptuś' Tutak
Zuzanna Galewicz
as Iga
Wiktoria Kruszczyńska
as Iwonka Majak
Iga Szubelak
as Kasia Solecka
Ewelina Żak
as Mother of 'Siczka'
Karol Lelek
as Maciej 'Broda' Augustyn
