Things are looking up for the Quinns. Kevin is about to marry Isabelle there's hopeful news about Bart captured by enemy forces in Afghanistan and the family are reuniting for Christmas at Winter Street Inn. But there are still some dark clouds to contend with in the form of love triangles and health scares. And as they prepare to host Kevin and Isabelle's wedding at the inn a blizzard hits Nantucket threatening to keep the Quinns away from the people and the place they love most. Before the snow clears the family will have survived enough upheavals to send anyone running for the eggnog...