Berge, Ski und falsche Spuren

At the Hotel Montana on the wintry Lärchenalp, there is already great unrest on the first day of the new ski season. Someone has spray-painted "Get lost, foreigner" on the facade overnight. Was the hotel randomly targeted by this vandalism, or is there more to it? The MounTeens – Sam, Lena, Matteo, and Amélie – get involved and follow various hot leads in the pre-Christmas town of Lärchenberg. Their investigations and other turbulent events suggest that the hotelier Dirk Beermann is being driven out by any means necessary. Will the four friends manage to find the right trail among all the false leads to solve the case?.