Sabrina and Mrs. Quick uncover a scandal at school involving Mr. Kraft and misappropriated funds. Meanwhile, Sabrina finds Salem a date for his high school reunion, but it seems he is much more interested in her than she is in him.

Determined to win Cutest Couple at the prom, Sabrina gets a dynamite dress that is a size tto small, becomes convinced she must lose a ton, and diets so much (with the "help" of an unscrupulous Other Realm salesman) that she disappears altogether.