December twenty-fifth is right around the corner, and Charlie is making his list and checking it twice. He is doing his best to show some peace and goodwill toward his nosy neighbor Gerry Arbitron, a real estate agent who seems to have designs on his house (and maybe on him, as well), while preparing for a very important role, indeed--his first Christmas as a grandfather. The last thing Charlie expects is to gain several new additions to his family....