On Christmas Eve, divorced dad Scott Calvin and his son discover Santa Clause has fallen off their roof. When Scott takes the reins of the magical sleigh, he finds he is now the new Santa, and must convince a world of disbelievers, including himself.
An angel is sent from Heaven to help a desperately frustrated businessman by showing him what life would have been like if he had never existed.
The Muppet characters tell their version of the classic tale of an old and bitter miser's redemption on Christmas Eve.
The Peanuts are celebrating the start of the winter season by ice skating on a frozen pond and singing "Christmas Time Is Here." Leaning against a nearby fence, Charlie Brown tells Linus van Pelt that despite all the traditions of Christmas presents, Christmas cards and decorations, he still winds up depressed, but is not sure why. Linus dismisses Charlie Brown's attitude as typical, quoting Lucy: "Of all the Charlie Browns in the world, you're the Charlie Browniest."
Eight years have passed since Scott Calvin took on the mantle of Santa Claus, redeemed himself to be good, and solved The Santa Clause Mystery. Now he has become a great Santa at the North Pole, until Head Elf Bernard and Curtis, the Keeper of the ''Handbook of Christmas'' break the news that there is another clause – the "Mrs. Claus", a mystery of who will marry Scott.
