When Bridget is busted over a school dress code violation, Cate is called upon to meet with her new principal. But Cate is in for a shock when she discovers that she went to high school with him. Meanwhile, when C.J. becomes his massage therapist, Jim hurts his feelings when he refuses to admit that his grandson has become good at something.

Kerry gets in the art program in Europe in the summer, but Cate forgot to submit her medical records in time. Together they appeal to principal Gibb. C.J. falls for Missy's big sister Sissy and Gramps for a woman he has a car accident with.

Knowing that Kerry is dragging her feet over breaking up with Kyle, Bridget takes it upon herself to do it for her sister. Meanwhile, Cate is offered the position of school nurse and Rory's first day of high school proves embarrassing when he has to hit the showers after gym class.

After Cate accepts the position of school nurse, Bridget and Kerry are convinced that she only took the job to spy on them. Rory is ecstatic that his mom might be able to protect him from a school bully.

Everyone fears the ringing of the phone when they all keep secrets from each other. Rory refuses to divulge the identity of the student responsible for beating him up at school. Bridget and Kerry use fake IDs to get into a club, where Bridget gives her phone number to guy, unaware that he's a police officer. Cate doesn't want the family to know that Coach Scott tries to get her to go out with him. C.J. is distracted and forgets to pick up Rory's pain medication.

While the family prepares Thanksgiving dinner for Cate to give her some much needed time off, she's left with nothing to do until she brings home an unexpected guest while on an errand. While C.J. deep-fries the turkey, Bridget and Kerry spar over pie recipes. Jim disassembles the TV in an attempt to repair it.

Cate is shocked to discover that Principal Gibb has hired C.J. as a substitute teacher. When C.J. catches Rory cheating on a test, he is torn about reporting it as Cate tries to persuade him to look the other way. Meanwhile, when Bridget breaks her leg because of Kerry's blunder, she makes her little sister's life a living nightmare.

While Cate finds herself becoming jealous of Principal Ed Gibb's new girlfriend, C.J. is asked by Ed to help tutor Cheryl for her GEDs -- and finds himself unwittingly being hit on by her. Meanwhile, Rory feels awkward after Cate accidentally interrupts him during a private moment.

After Principal Gibb and Cate fall asleep at the house while watching a movie, the family catches them and falsely assumes that the two are having a relationship. Bridget, Kerry, Rory and C.J. are forced to go ice-fishing with Jim in order to spend quality time with their grandfather. But Jim would much rather be left alone and is forced to keep up a happy façade.

After C.J. discovers that Cate may be starting a relationship with Principal Gibb, he blabs it to Bridget. An angry Cate has Gibb put C.J. in charge of the student detention on Ditch Day, and C.J. gets even by detaining Bridget. Because she is stuck in detention and can't complete the Ditch Day prank herself, Bridget convinces Kerry and Rory to steal the rival school's mascot.