When a high fashion designer decides to preview her latest creations at Rosie's mother's posh boutique, Rosie is upset that her mother won't let her get involved, but an unpacking screwup sets the stage for Rosie to save the day...
Although she is the only girl who does not want the coveted role of Juliet in the school's production of "Romeo and Juliet," Becky wins the part anyway, and soon everyone thinks she is a teacher's pet...
Despite the misgivings of her friends, Rosie agrees to have the Party Line organize a party for the crabby and universally unpopular Jennifer Peterson, but Rosie has a complicated secret plan to make the party a success...
Julie wants that cute Mark Harris but his best friend is the obnoxious, girl-hating Casey Wyatt, a situation that leads to problems when Julie and her party line pals are hired to provide the entertainment at Casey's shindig...