It’s the holiday season for the Dahl family! The four adult children return to their childhood home with partners in tow. The Dahl traditions include singing carols in harmony at the drop of a hat, but the gathering is anything but harmonious. Old conflicts resurface, new issues battled, and dinner is taking absolutely forever to be served. Will the love the Dahls have for each other be enough to get them through, or will this be their last Christmas together?