Pluto comes bounding outside to help Mickey get a Christmas tree. Chip 'n Dale see him and make fun of him, but the tree they take refuge in is the one Mickey chops down. They like the decorations, especially the candy canes and Mickey's bowl of mixed nuts. But Pluto spots them and goes after them long before Mickey spots them. Minnie, Donald, and Goofy drop by to sing carols.
Pluto's Christmas Tree
The tree that Mickey and Pluto chop down to bring home for Christmas is the tree that Chip 'n Dale live in.