V norvezhskom gorode Bergene zhivyot sebe vpolne obychnaya norvezhskaya semya: mama, papa, shestiletniy Martin i ego starshaya sestra Matilda. No vsyo menyaetsya, i zhizn vdrug napolnyaetsya priklyucheniyami, kogda k nim priezzhaet pogostit dedushka Oskar, kotorogo deti ranshe nikogda ne videli. Oskara nedarom prozvali SHokoladnym dedushkoy, ved on strashnyy slastyona i zhit ne mozhet bez konfet i...