A discarded silk top-hat becomes the focus of a struggle between a washed-up stage magician and a group of schoolchildren, after it magically brings a snowman to life. Realizing that newly-living Frosty will melt in spring unless he takes refuge in a colder climate, the magic snowman and Karen, a young girl whom he befriends, stow away on a freight train headed for the North Pole. Little do they know that the magician is following them, and he wants his hat back!

Nervous high school senior Tom Lawrence visits Port Chester University, where he gets a taste of politically correct college life when he's guided by fraternity wild man Droz and his housemates at The Pit. But Droz and his pals have rivals in nasty preppy Rand McPherson and the school's steely president. With their house threatened with expulsion, Droz and company decide to throw a raging party where the various factions will collide.

A young shepherd, Lucas, is blinded by lightening, and some kindly nuns at a nearby abbey take him in. Sister Catherine describes snow to Lucas, who has never seen it. Lucas gets chosen to play an angel in the abbey's Christmas pageant, and the Christmas snow that falls during the pageant works a small miracle.

Peter Cottontail wants to be the #1 chief Easter Bunny, and everyone in April Valley agrees...except for Evil Irontail. Peter must deliver more eggs than this archrival to earn the top spot...and save Easter for children everywhere!

Emmy Coer, a computer genius, devises a method of communicating with the past by tapping into undying information waves. She manages to reach the world of Ada Lovelace, founder of the idea of a computer language and proponent of the possibilities of the "difference engine." Ada's ideas were stifled and unfulfilled because of the reality of life as a woman in the nineteenth century. Emmy has a plan to defeat death and the past using her own DNA as a communicative agent to the past, bringing Ada to the present. But what are the possible ramifications?