Homer Bedloe, trouble-shooter for the C&F W Railroad, is sent by railroad president Norman P. Curtis to the little community of Hooterville to find out why a branch line doesn't connect with the main line. The branch line carries the "Cannonball" train, and is vital to the Shady Rest Hotel, run by Kate Bradley, her three grown daughters and "Uncle Joe" Carson. If Bedloe succeeds in shutting down the Cannonball, Kate faces ruin. John Ashley appears as passenger Fred.

Kate uses a combination of charm, subterfuge, and wiles to prevent Homer Bedloe from catching the Hooterville Cannonball and getting to Pixley in order to initiate proceedings that would permanently terminate the train's operation. She has to keep him at the Shady Rest long enough to convince him that the Cannonball is an integral part of the valley's life. When all else fails, Kate gets Sam, the Hooterville Jack of all professions, to scare Bedloe into changing his mind.

The Cannonball and its primary passenger, Uncle Joe, are pelted with eggs after the Hooterville Hornets, coached by Uncle Joe, are drubbed in what may be their worst game ever. Another unexpected passenger on that run is Homer Bedloe, who is surprisingly cordial and pleasant. Uncle Joe doesn't see anything wrong with Bedloe being cordial and taking it like a man in defeat in his efforts to scrap the Cannonball. Kate on the other hand believes Bedloe is up to no good. News gets to Sam that John Fisher and Max Thornton, two bigwigs from the railroad, are coming for a surprise inspection the following day. When Kate learns this news, they have to go clean-up the Cannonball. Plus, they have to keep Bedloe preoccupied so that he won't know what they're up to. And third, they have to railroad the visiting bigwigs about how deluxe the service on the Cannonball is. Fisher and Thornton are very impressed with the service.

The Bradleys, Sam Drucker, Herby, Charlie and Floyd are decorating the Cannonball for its annual Christmas Eve trip of caroling, gift-giving and merriment around the valley. But, Homer Bedloe is determined to be a Scrooge and take possession of the train on Christmas Eve. Railroad President Norman Curtis finds out what Bedloe is up to and goes to Hooterville to stop him.

Beatlemania has hit Hooterville by storm. Uncle Joe recruits Billy, Bobbie, and Betty Joe along with their friend Sally Ragsdale to form their own band called the Ladybugs. Colonel Partridge, a booking agent, comes to the Shady Rest to see the girls in action. Partridge likes what he hears and wants to book the girls. Sally's father, Sheriff Ragsdale, comes by and says he wants his daughter to finish school and not tour the country. Uncle Joe thinks he has a way to save the group and dresses up as a Ladybug.

It's the Christmas season, and everyone's in a rush to decorate the Cannonball in preparation for their annual caroling and gift delivery runs. Their plans are placed into jeopardy with the arrival of Homer Bedloe. He says that what they are doing is against railroad policy and he won't allow it. Kate hopes that Bedloe will have some heart, and she tries to use her best Christmas spirit in treating Bedloe with kindness to change his mind. Only Norman Curtis, the President of the Railroad, may be able to make Bedloe change his mind.