She's young, pretty, athletic and just turning sweet sixteen. Sabrina (Melissa Joan Hart) is a newcomer to the small town of Riverdale and just wants to fit in. Sabrina lives with her aunts, Hilda (Sherry Miller) and Zelda (Charlene Fernetz). She readily accepts her somewhat eccentric relatives and their mysterious black cat, Salem, but is finding it tough to feel like she belongs, especially at school, where the "in-crowd" clique doesn't want to bother with her. Matters aren't helped by the odd things that seem increasingly to be happening around her. What Sabrina doesn't know is that her parents are witches, her aunts Zelda and Hilda have magical powers, and that very soon, on her upcoming sixteenth birthday, she will inherit her mystical birthright and the knowledge of how to use it! That's magic!