A failed 'togetherness' spell results in Gem and Sabrina getting stuck together.

Harvey has to get his measles shot and Pi starts to tell scary stories about getting shots from doctors. Sabrina boost his and her own confidence about getting shots, but when Hilda and Zelda take her to get a witchitis shot Pi's scary stories start to get to her and she eventually catches it from a magic cactus. Witchitis causes her magic to act wacky and makes her feel awful. Salem discovers that if she doesen't get the shot it can result to Hypogermia and when she catches it she finally gets her shot but has to pay a huge doctor's bill for the delay.

Hilda is the worst driver around and Sabrina wants her to drive her to this concert, so she uses the spookie jar to conjure up a spell to get a handsome driving teacher to make Hilda learn. Soon Zelda learns about him and the two start competing for Ed's affections. In the end Hilda gets her liscence and they both win his heart until Ed conjures back into his original form: a dog!

Sabrina and Salem destroy Zelda's old magic book that was written and signed by Merlin himself. They travel back in time to the middle ages to when Merlin first wrote the book but a problem occurs and they go to far up to when Merlin was 12 yrs old. Back then he was an amatuer at magic and his friend (King) Dude Arthur was terrible at magic so Sabrina and Salem teach them and soon they find the mighty sword of Excalibur which they need to use to defeat the evil forces that threaten Arthur from becoming King. In the end they win and Merlin gives Sabrina a new replaceable magic book for Zelda. She and Salem go back and put it back on the shelf but when they accidently destroy all of Zelda's other books too the adventure starts all over again.