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.

Professor Wilson discovers a lost Akita puppy on his way home. Despite objections from his wife, Hachi endears himself to the family and grows to be Parker’s loyal companion. As their bond grows deeper, a beautiful relationship unfolds.

When a shopping mall is taken over by a gang of organized crooks, it’s up to a mild-mannered security guard to save the day.