Sabrina hits a really bad day: disregarding her aunts' warning, she buys a "tomorrow" ball from a supernatural traveling salesman, and believes its prediction that she will get an "A-" on her science project. Unfortunately, Mr. Pool (dressed in a kilt for "Scots Pride Day") doesn't share that estimation of her work, and gives her a C- and a chance to redo the project overnight. Instead, Sabrina tries to sneak out of the house aboard her trusty vacuum cleaner to attend a "Smashing Pumpkins" concert, but gets pulled over by a flying motorcycle cop and cited for flying over the town "with a full bag and bad dust emissions." 

Sabrina unintendedly becomes the object of affection of a magic finding troll when she conjures a spell to locate her missing homework. As Roland tries to make her his bride, Hilda and Zelda try to find a loophole in their contract in an attempt to stop the wedding.