Percy, Buffalo Bill and I

This was the summer that Ulf thought would be just another ordinary holiday. That he would visit his grandfather and grandmother in the archipelago – that he would do some swimming, tease his brother, spend some quality time with his summer mates, and count granddad’s farts during the night.
But it wasn’t going to be that simple.
Because this year he falls in love with Pia. And Percy comes to see him, although Ulf will rather be without – and he does not want Percy to dance with Pia, either. This is a summer full of adventure, love, jealousy and friendship. It is also the summer when granddad becomes the old western hero, Buffalo Bill. (official distributor synopsis)