The mystery of the death of a well-known politician is about to be solved: The Hamburg publisher Eckernförde has a secret audio document on which the last words of the victim are recorded. The BND and the CIA, who want to prevent the publication of the cassette at all costs, are also aware of this. By mistake, the cassette ends up in the handbag of Eckernförde's daughter Nina, who flies 3 to Munich with it, believing that it is her Japanese course 3. Out of concern for his daughter, the publisher immediately hires two bodyguards: Erkan & Stefan. But instead of protecting the girl from catastrophes, the concretely crass duo stumbles from one blunder to the next with their blonde protégé ...