ThewinterholidaysareturningouttobeespeciallystressfulforGregHeffleythisyear.AfteraccidentallydamagingasnowplowwhilemakingasnowmanwithbestfriendRowleyJefferson,Gregworrieshewon'tgetthenewvideogameconsolehesodesperatelywantsforChristmas.Tomakemattersworse,hegetssnowedinwithhisfamily,includinghisgrumpyolderbrotherRodrickandannoyingyoungerbrotherManny.