RS Mr. Conductor and Bart's Christmas Adventure, retitled RS Mr. Conductor and Bart's Mountain Adventure for American audience, is the twenty-sixth episode of the third season of RS Mr. Conductor the Conductor and Friends, and the seventy-eighth episode overall. It is a parody of the Thomas and Friends episode, Thomas and Percy's Christmas Adventure/Thomas and Percy's Mountain Adventure.
- RS Mr. Conductor (from Shining Time Station) as Thomas
- Bart (from The Simpsons) as Percy
- Grandpa Dave (from Arthur) as Toby
- Scooby Doo (from Scooby Doo) as Terence
- Budgie (from Budgie the Little Helicopter) as Harold
- Lanolin (from Garfield/US Acres) as Henrietta (does not speak)
- Mayor Adam West (from Family Guy) as Sir Topham Hatt (does not speak)
- Edd (from Ed, Edd n Eddy) as Edward (cameo)
- Homer (from The Simpsons) as Henry (cameo)
- Garfield (from Garfield and Friends) as Gordon (cameo)
- Schemer (from Shining Time Station) as James (cameo)
- Spike (from My Little Pony: Friendship is Magic) as Duck (cameo)
- Mario (from Mario) as Donald (cameo)
- Patty (from The Simpsons) as Annie (cameo)
- Selma (from The Simpsons) as Clarabel (cameo)
- Ten Cents (from TUGS) as Bertie (cameo)
- Mrs. Twombly (from Littlest Pet Shop (2012)) as Mrs. Kyndley (cameo)
- Everyone else as Themselves
Narrator: "If someday you should see RS Mr. Conductor puffing happily along the path, he may be on his way to a village nestled deep in the heart of TV Land.
One December morning, RS Mr. Conductor called to all his friends."
RS Mr. Conductor: "It's nearly Christmas, and I'll bring you lots of letters and parcels."
Narrator: "But a week later, the storms came.
TV Land was covered in thick snow. The TV characters found work difficult. Some had to help clear snow from the roads, and workmen hacked away at the frozen banks of ice.
RS Mr. Conductor and Bart were collecting important post for Christmas."
RS Mr. Conductor: "Driver says there's lots of post for the village."
Narrator: "Said RS Mr. Conductor."
RS Mr. Conductor: "I'll need an extra goomba for it all."
Narrator: "Bart was feeling left out."
Bart: "It's not fair. You're not leaving any post for me."
Narrator: "But Bart's chance had come."
RS Mr. Conductor's Driver: "There's been a change of plans."
Narrator: "Said RS Mr. Conductor's driver."
RS Mr. Conductor's Driver: "Mayor Adam West needs us at the big station. Bart, you are to take RS Mr. Conductor's load to the village."
Narrator: "Bart was delighted, but RS Mr. Conductor was sad."
RS Mr. Conductor: "I won't be able to say Happy Christmas to all my friends."
Bart: "Don't worry."
Narrator: "Said Bart kindly."
Bart: "I'll do it for you."
RS Mr. Conductor: "It's not the same."
Narrator: "Sighed RS Mr. Conductor.
Bart was making good time on his way to the village when suddenly,"
Bart's Driver: "What's that?"
Narrator: "Called his driver. There ahead was a fogman by the path. He was holding a red light."
Fogman: "The village is cut off by snow."
Narrator: "He shouted."
Fogman: "We need shovels, workmen and a helicopter. Leave your goombas in the siding, and go back quickly."
Narrator: "Bart was soon hurrying to Budgie's airfield."
Bart: "Wake up, lazywings! The mountain villagers need your help. They're stranded."
Narrator: "Replied Budgie."
Budgie: "I like an emergency to keep me warm."
Narrator: "And he buzzed away."
Narrator: "Sighed Bart."
Bart: "What's next?"
Narrator: "Suddenly, there was RS Mr. Conductor with Sccoby Doo and the works trailer."
RS Mr. Conductor: "Come on, Bart."
Narrator: "Whistled RS Mr. Conductor."
RS Mr. Conductor: "Follow me."
Narrator: "The two TV characters battled their way through the snow.
At last, they reached the village. Budgie was already there busily dropping food for people and animals.
Scooby Doo quickly got to work."
Scooby Doo: "Lovely stuff!"
Narrator: "He said, as he pushed the snow aside."
Villagers: "Well done, Bart! Well done, Mr. Conductor!"
Narrator: "Cheered the villagers."
Villagers: "You're the best Santa Claus this village has ever had!"
Bart: "What's a Santa Claus?"
Narrator: "Asked Bart."
RS Mr. Conductor: "Santa Claus is someone who drops presents down chimneys at Christmas time."
Narrator: "Bart looked at his head."
Bart: "I wonder if,"
RS Mr. Conductor: "No!"
Narrator: "Laughed RS Mr. Conductor."
RS Mr. Conductor: "Chimneys, Bart, not heads! Which reminds me, your post is still back at the siding, isn't it?"
Narrator: "Bart hurried back to fetch it.
Just then, Grandpa Dave arrived with Lanolin."
Grandpa Dave: "We've brought lots of hot drinks and food for the villagers."
Narrator: "He whistled.
That night, all the TV characters went back to the house, except Grandpa Dave. The villagers had made a plan to thank the TV characters. They gave Lanolin paint pots and parcels, then they set off through the moonlit countryside.
All the TV characters were fast asleep in the house as Grandpa Dave ran silently into the yard. He had no idea what the villagers were going to do, but he knew it was going to be a big surprise.
When the TV characters woke the next morning, they could not believe their eyes. The house had been repainted and decorated. Parcels lay everywhere. The TV characters cheered in delight, and everyone agreed that it was a really happy Christmas."