Sabrina tires of Libby's constant teasing-- which worsens when Sabrina joins a science club-- so she gives the tormentor a taste of the taunting by turning her into a nerd. Meanwhile, Zelda wants Hilda to throw out some very old items (such as a suit of armor and a cannon). Tired of watching Libby treat people badly, Sabrina decides to give Libby a taste of her own medicine by transforming her into a geek. However, when Libby succeeds in turning her fellow geeks against the entire school, Sabrina must find a way to unite her classmates before the plan backfires. And Hilda triumphantly uses her antiques against marauding snowballers.
Elenco: Melissa Joan Hart , Beth Broderick , Caroline Rhea , Alimi Ballard , Andrew Walker , Bumper Robinson , China Shavers , David Lascher , Diana-Maria Riva , Elisa Donovan , Jenna Leigh Green , Lindsay Sloane , Martin Mull , Michelle Beaudoin , Nate Richert , Nick Bakay , Soleil Moon Frye , Trevor Lissauer .