Maisy makes a snowmouse and runs off to play in the snow with her friends Tallulah, Charley and Cyril. When Maisy gets covered in snow her friends don't know which is the real Maisy; Maisy decides to make some cards, and Cyril joins in too; Maisy and Tallulah set off to choose a Christmas tree, but they find that decorating it is not as easy as they think; It's Christmas Eve and all round Maisy's house, nothing is stirring, except a very excited little mouse.