It is the fourth special in a series beginning with Rankin/Bass Animated Entertainment's 1969 television adaptation of Steve Nelson and Jack Rollins's 1950 holiday song.

The special begins with a musical number showing that Beansboro Elementary School is canceled for the day due to a seven-inch snowfall.

The scene then shifts to Holly DeCarlo, a depressed and lonely young girl, and aspiring magician, with only one friend, a tone-deaf nerd named Charles who has a knack for climatology.

Meanwhile, a new product appears in Beansboro: an aerosol spray called "Summer Wheeze" that causes snow to instantly disappear, and thus poses a fatal threat to Frosty.

At a presentation before the town council, a trustee voices concern about the environmental impact of the untested product; Mr. Twitchell orders his pet cat, Bones, to open a trapdoor beneath her seat.