What does Sune do when he discovers that his beloved Sophie is about to hit the mountains with the sporty, handsome classmate Santos? Simple: he convinces the whole family Andersson to follow, although they neither afford a ski-trip or can actually ski. But Sune succeeds in tricking his daddy Rudolf that the ski-trip is already paid for – by none less than Sophie’s family.

Once there, the two families share cabin, which proves to be easier said than done while Sune has one goal: to win back Sophie!