Scrooge is counting money in the counting house of his firm when Bob Cratchit comes in, wanting to borrow a lump of coal as he is freezing. Scrooge refuses and tells him to just work faster so he'll keep warm. Then Scrooge's nephew Fred comes in with Christmas decorations and mistletoe. He is tossed out, and decides that "somebody oughta teach that little man some Christmas spiriting". Fred then borrows a piece of coal and places it in the office of Cratchit, who graciously thanks him.

However, Scrooge's cat Sylvester notices this and warns him. Scrooge takes back the coal, throwing him out along with the carolers Elmer Fudd, Pepe Le Pew and Foghorn Leghorn whom Fred let into the office, and fires Cratchit. Cratchit invites Fred to dinner and introduces him to "his youngest son Tiny Tim. Tim retorts, and Scrooge sends the light company to take the last candle (as Cratchit is past due) and a notice that the house is being foreclosed, forcing Cratchit to move out by midnight. Fred decides this is the last straw.

First, Fred annoys Scrooge with more carolers. When Scrooge goes out to deal with this, he slips into a pile of snow. Next, he puts snow into Scrooge's hot bath, turning it ice-cold as Scrooge jumps in. Fred then dresses up as the ghost of Scrooge's late business partner Jacob Marley. As Marley, he drags around chains and beats a drum. Investigating, Scrooge accidentally slips down the stairs and into the cold along with Sylvester. When they return to bed, the ghost of Marley reappears. Sylvester promptly flees, slamming the door behind him and cutting off Scrooge. The ghost of Marley threatens to take Scrooge to see "the man in the red suit" (the Devil, though Scrooge first guesses Santa Claus).

Scrooge promptly changes his ways for the better. To prove himself reformed, he dresses up as Santa Claus and runs through the streets at night - giving money to the poor, widows, orphans, and the like. He also rehires Bob Cratchit by making his new partner in the firm, succeeding Marley. Tweety raises a toast to him, and Fred kisses him. Scrooge (now going by the name of Sam) still hates kissing, though.

This story is the first part of Bugs Bunny's Looney Christmas Tales. As the second one featuring Wile E. Coyote and The Roadrunner (Freeze Frame) begins, Bugs congratulates Sam for making Scrooge a charitable character, but Sam tells Bugs that it was all a play, and demands Porky and the gang give all his money back to him.

• Mel Blanc as Ebenezer Scrooge, Fred, Bob Cratchit, Tiny Tim Cratchit, Elmer Fudd, Pepé, Foggy, Jacob Marley, Tweety, Sylvester the Cat and Ghost of Jacob Marley

• List of A Christmas Carol adaptations
• List of Christmas films
• List of Yosemite Sam cartoons
• List of Bugs Bunny cartoons
• List of Porky Pig cartoons
• List of cartoons featuring Sylvester

• Bugs Bunny's Christmas Carol at IMDb