John Oakes offers a succinct description of the plot: “A group of furry South Pole animals build a snow man. They begin to throw snowballs at it. This make him come to life and oh what a vengence he has. Stomps around scaring the living daylights out of everyone. How will they stop him?”
The IMDB also catches a continuity goof at approx. 4:50 in the cartoon: “When the snow man sits down at the church organ, the stovepipe on his head disappears. It reappears in the next scene.”