The hero of this light-hearted family show has four legs and – if you ask his friends at police HQ – more brains than many humans: Parson-Russell terrier Kalle! Down-to-earth policewoman Pia has adopted Kalle, who lives with her family but can’t seem to get his nose out of other people’s business. This proves to be a boon for Pia and her colleagues, since Kalle, who, in time, becomes a full-fledged police dog, has a fine nose and a flawless instinct that are often worth more than piles of evidence!