Friendship is not a simple thing at all and Julka knows it very well. She is 12, goes to a boarding school, and has never had a real friend so far. The upcoming holidays will cause some problems. Instead of going to her parents in Canada, Julka ends up at her aunt’s in Warsaw. Olek is a boy who lives in the same building. When the children lay their hands on a plan leading to a treasure, the adventure begins.