Trixie is a 16-ish something girl who lives in her uncle's old manor with her best (though very grumpy!) friend; a black, talking cat named Truls. One day a strange little girl was falling down from the sky and nobody seems to know where she comes from. Now they all have to cope with this mess (she's literally a jumping tornado) and uncover her past. We're also introduced to Trixie and Truls' other friends who seem to appear out of nowhere when it doesn't even suit the situation.