On her sixteenth birthday, Sabrina Spellman finds out that she is a witch. However, instead of helping her, it actually makes life more difficult, especially after she gets on the wrong side of head cheerleader, Libby.

In order to find out what Libby has been saying about her and Jenny, Sabrina gives her a piece of cake covered with truth sprinkles. However, when her teacher shares the cake with students and teachers, Sabrina finds that the truth hurts.

In an attempt at earning some money to buy roller blades, Sabrina takes a job babysitting a little boy. However, when she is trying to calm him down, she inadvertently casts a spell which turns him into a man.

When Sabrina is left feeling down because Harvey has agreed to go to the school dance with Libby, her aunts literally cook up a date for her, but nonetheless she still pines for him.

Sabrina's zany Aunt Vesta pays her a visit and soon hatches a plot to entice her niece into moving to the Other Realm.

In an effort to get Harvey's attention, Sabrina takes a job as a magician's assistant, but things go awry when she inadvertently makes the magician disappear.

Depressed by her lack of talent at sports, Sabrina casts a spell which makes her brilliant at Kung Fu, but when she beats a seasoned professional, her conscience bothers her.

After spending the weekend at Jenny's, under the advice of her aunts, Sabrina reluctantly invites Jenny to her house. However, when Jenny enters the linen closet, she ends up in the Other Realm, at the mercy of Drell.

Sabrina and her aunts take a trip to Mars, but Sabrina is reluctant to leave Harvey. She agrees to call him at a specified time, but when her attractive ski instructor takes a shine to her, she soon forgets about the mortal world.

As Sabrina and Harvey grow closer, her aunts reveal that when a witch kisses a mortal for the first time, the mortal turns into a frog. Unable to stop herself, however, Sabrina kisses Harvey, and must find a way to change him back.