The McGee's discover that in a frantic Christmas rush they've forgotten something of great importance to them. When the mail comes there's a whole lot of Christmas cards to open and Fibber is in a happy mood. Doc arrives with a Christmas present for the McGee's and Fibber gets all sentimental and tells Doc he'll never forget what a good friend the Doc has been to them over the years. After Doc leaves Fibber and Molly remember the man they'd never forget is the man they forgot to mail a card to!