As Christmas approaches, Paula, a St. Louis antique appraiser, reluctantly accepts a marriage proposal from her boyfriend, Daniel, a career-focused attorney. When her Aunt Jane senses she has mixed emotions over the engagement, she invites Paula to her Nantucket home. Upon her arrival, Paula plans a trip to the nearby island of Martha's Vineyard where she meets a charming inn owner.
Kevin McCallister's parents have split up. Now living with his mom, he decides to spend Christmas with his dad at the mansion of his father's rich girlfriend, Natalie. Meanwhile robber Marv Merchants, one of the villains from the first two movies, partners up with a new criminal named Vera to hit Natalie's mansion.
Miser Ebenezer Scrooge is awakened on Christmas Eve by spirits who reveal to him his own miserable existence, what opportunities he wasted in his youth, his current cruelties, and the dire fate that awaits him if he does not change his ways. Scrooge is faced with his own story of growing bitterness and meanness, and must decide what his own future will hold: death or redemption.