Based on the 1969 Rankin/Bass Christmas Special. On Christmas Eve, a little girl named Karen and her classmates from school build a snowman and give him the name Frosty. When a magic hat which used to belong to a magician named Professor Hinkle is placed on his head, Frosty comes to life! And when he realizes the thermometer's temperature rises and he begins to melt, Karen and the kids must get him to the North Pole where he never melts. As Frosty and Karen, as well as Hocus Pocus the rabbit, hop aboard a refrigerated boxcar on a train headed north, they start their journey to the North Pole. On the way, the nasty magician follows them in order to claim the hat back. Narrated and sung by Kelsey Grammer.