Harrison campaigns to save the job of the school's shop teacher when the instructor's career is jeopardized by his announcement of plans for a sex-change operation. Meanwhile, Cherry Cherry teaches a home-economics course at Kennedy High as part of her community service sentence for punching a police officer.

A new male student sets out to join the cheerleading squad--by any means necessary. Meanwhile, Sam bests Brooke in a modeling contest and nets an opportunity to appear in a commercial with U.S. Women's World Cup soccer stars Tiffeny Milbrett and Tisha Venturini.

Principal Hall forces Josh, Harrison and Sugar Daddy to attend a weekend sensitivity camp after they harass a scantily clad Lily. Sam and Brooke work on the school's crisis hot line and inadvertently heighten one of the caller's problems.

A new vice-principal joins Kennedy High and his good looks draw the attention of the female students. Meanwhile, Brooke lies to Carmen about a tattoo she claims was inspired by Josh, so Carmen suspects that Brooke may want her old beau back; and Emory tells Harrison that a grade-school music teacher was once impressed with Harrison's music skills.

The students embark on finding nominees for "Principal for the Day," while a custodial strike leaves the school a mess. Meanwhile, Brooke fears she may be pregnant; and Sam, Carmen and Lily discover something personal about Harrison's mother.

Sam and Josh have an embarrassing encounter during a play rehearsal, starting rumors that they are interested in each other. Meanwhile, Brooke confesses to Nicole that she and Josh are still virgins, and Harrison's hope for a relationship with Brooke gets a boost when she turns to him for comfort.

Brooke and Sam try to derail their parents' wedding plans by planting false evidence of Mike's infidelity, which leads to a startling announcement from Mike and Jane. Meanwhile, Mary Cherry discovers that her mother is engaged to actor Erik Estrada.

A Sadie Hawkins dance has most of the students obsessing over their appearances, while Brooke considers inviting a young man of substance. Meanwhile, Nicole, Poppy and Mary Cherry follow a dangerous crash diet: the one who loses the most weight gets to ask out the gorgeous guy they all pine for.

When Sam, Lily and Carmen dye their hair blonde to prove that the popular girls' power is based on their hair color, Brooke and her friends set out to prove them wrong by darkening their own tresses. Meanwhile, a beautiful, new exchange student is attracted to Sugar Daddy.

Members of the cheerleading squad agree to attend Carmen's slumber party, causing Sam to question their motives. At the party, Nicole tries to impress Carmen's older brother, Leo, and a party game takes a disturbing turn.

Emory puts the popular kids, Bobbi Glass and the lunch lady on trial for harassing him. Sam and Lily volunteer to represent him at the school's mock proceeding, which leads Principal Hall to ask Brooke to lead the defense. Meanwhile, Josh and Sugar look forward to the start of the wrestling season.

Brooke, Poppy, Mary Cherry and Carmen are nominated for the Junior Court Homecoming Queen and Nicole pressures two of Brooke's opponents to halt their campaigns. Meanwhile, Sam and Jane move into the McQueens' house, causing an instant turf war between Brooke and Sam.

Desperately seeking to be popular again, Mary Cherry fails in an audition to a teen talent show. But that didn't stop her, and she decides to put a team of students together to be in ""The Big Head Challenge"". Everybody is studying for the SATs and they all think it would be a nice way to test their knowledge at this competition. Cherry Cherry, who has become a student at KH (trying to beat her 50 points score in her SAT), also tries to get in, but loses the very last spot to Josh, who surprisingly know a lot more about chicken than we thought. Meanwhile, Carmen decides to take salsa lessons, and has her heart broken by the instructor, whom she had a crush for. But after he realizes how bad he made Carmen feel, he goes to KH to ask her out. At the competition, the gang is first relieved to be against the John Ashcroft Private School for Special Needs Children, but then surprised when they see that Cherry Cherry has bought the entire team and replaced the students by the teen talent show

Nicole, desperate to get back to the Glamazons, tries to bribe and blackmail Principal Krupps. Her attempts fail and she gets Mary Cherry and Sugar Daddy to help her make a fake video about him. As a result, she gets terminated from the cheerleaders forever. A new kid joins Kennedy High and gets a spot on the football team. Josh, jealous of him, tries to put everybody else against him. He gets his mom a job at school and she starts to date the football coach, and Josh's life falls apart. Sam misjudges George but realizes that friendship is more worth than an article. Josh finds Nicole crying, a proof that she still has a human side. They console each other.

Lily, Carmen, Mary Cherry and Brooke are peacefully riding Lily's car when they pass by a car crash and notice the Gremlin's license plate, TUNA69, and realize that the car belongs to their classmate April Tuna. The entire school is touched by her death and they make a memorial service in her honor. Everyone's feeling guilty about how they treated her. Josh gets a new hairstyle and joins the ""mullets"" club. Nicole finds out that the cafeteria lady is in fact her long lost birth mom. Sam gets an email from Harrison telling her he loves her and asks her to choose between him and George. Nicole gets an email too, saying what a bitch she is. She admits being a bitch at the memorial service, and April suddenly appears, saying she was not in the car that got crashed.

With a lot of power in her hands and not so many brain cells in her head, April Tuna is ordered by Principal Krupps to cut one of the school's clubs. April becomes an easy prey for Evil Nicole (still out of the Glamazons and thirsty for revenge), who manipulates her into cutting the Glamazons off. April and Emory have a small fight when she threats to cut the ""John Travolta-inspired Staying Alive"" club, for which Lily, Harrison and Josh compete to be president of. Meanwhile, Brooke gets in deep trouble after she doesn't come home from Jamie's, which causes Mike to get furious and ground both Sam and her for lying. After Jane talks to him, he finally decides to give Jamie a chance and invites him over for dinner. Back at KH, Emory blackmails Tuna in order to save his club, and she ends up losing the position of student body president to Nicole, who immediately cuts the Glamazons, replaces it with ""Bring It!"", the new pep squad with her as the big star, and shuts the John Travolta club,

Sam writes an exposé about the cheerleaders' school budget, leading to the squad's termination and its remaining funds being redistributed to the drama department. The exposé also heightens the tension between Brooke and Sam as they prepare for their first dinner together with their parents. Meanwhile, Josh must decide between starring in the school musical or playing in the homecoming game.

Brooke bonds with her long-lost mother--much to her dad's chagrin. Meanwhile, Lily and Sugar Daddy try to save a tree from being cut down, and Carmen delays telling her friends about her pregnancy.

Bobbi Glass's uncle Tipton is coming to town, and she has to find a solution for her lies. All these years she has been telling him about her child, which she doesn't have. He is rich and she wants his money. So she bribes Nicole to pretend to be her daughter. Carmen runs away from home because she is having family problems. Her father left and she has bruises on her arm. She stays with Sam and Jane for a while, but then Jane talks her into calling her mom. She doesn't want Carmen to come back anymore, and Carmen is thinking about getting her own place. Trying to help Carm with money, Lily shows up at the family lunch and poses as Bobbi's second daughter. Bobbi's plans are ruined and nobody gets the money. Meanwhile, Bonnie, the new SAT teacher, becomes friendly with Brooke and they have lunch together. She gets drunk and Brooke tries to drive her home, but she takes the wrong car by accident and gets in major trouble. Jane and Sam have to take her out of prison. And then Jane realizes

In the series pilot, social opposites Sam and Brooke are paired as lab partners, to the delight of Carmen, who sees it as a chance for Sam to help her get on the cheerleading squad. Meanwhile, Brooke and Nicole plan the first party of the school year and star quarterback Josh tries out for the school play.

Sam discovers that Nicole, Poppy and Mary Cherry stole the answers to the biology midterm, and she sets out to gather the evidence she needs to turn them in. Meanwhile, Mike and Jane's sneaking around angers Brooke and Sam.

Brooke and Sam are forced to hold their annual Christmas parties together, and Carmen is injured just weeks before the next round of cheerleader tryouts. Meanwhile, Nicole's brooding over the yuletide season leads to visits from the ghosts of Christmas past, present and future.

Brooke decides to run for student council president, dropping out of the Homecoming Queen election. She asks Harrison to be her campaign manager. They disagree on mandatory drug testing for students and he quits to run against her. Sam, Carmen, Nic and Mary Cherry get nominated to Homecoming Queen. Sam is motivated by George to run for it, but gets too into the spirit. Carmen is sleeping at the school since she is homeless, and Bobbi Glass invites her to her home. Seeing in Carmen herself in high school, Ms. Glass helps her with the contest (even threatening to give everybody an F if they don't vote for Carmen). Nic and Mary Cherry look for help with Hellacious Arke, a past 3 time Homecoming Queen, who is also Ms. Glass's own ""Nicole"" back in her high school days. Brooke misses Josh and sees him and Lily trying cough syrup while spying on them. Motivated by the recent death of a student of cough syrup overdose, she decides to run her campaign on anti-drug platform. Scared to be caught

Bobbi Glass ruins the annual "skip day" ritual for the popular and alternative kids by faxing their photos to their favorite hangouts so they'll be caught cutting classes. The kids plot their revenge during an extended musical number. Meanwhile, Sam and Brooke agree to work together to make their parents' rehearsal dinner a success.

After Harrison returns to school since he had his bone marrow transplant, he acts in a weird way, making everybody think he's possessed or something. The girls think about it and conclude that he has impersonated Nicole's personality, since she was the donor. They decide to call a priest to exorcise him. Meanwhile, Josh and Lily's relationship is growing so much that there's hardly any space left for Sugar Daddy in Josh's life. Feeling neglected, he finds a new friendship in George. They enjoy each other for a while until George feels like Sugar is demanding too much attention. Josh and Sugar make up. Nicole finds out she's adopted after she asks her mom about her birth and she doesn't give clear information. Shocked, Nicole finds out that her mom was a 16 year old cheerleader, and tries to find her with no luck. Both Nicole and Harrison conclude they have to find themselves.

Bobbi Glass (with her new nickname, Claws) has a new experiment for the students: they have to take care of baby dolls as if they were real babies. Everybody gets one, except for Lily who shares the doll with Carm. Because they don't know the baby's gender, they name it Hillary Swank - neither a boy nor a girl. Brooke is too busy because she is moving to San Francisco with her mom, and doesn't have time to take care of the doll. Emory's twin sisters, Emma and Emily (Em&Em, a parody of the rap singer Eminem) come to K. High looking for lessons from Nic and MC for how to become popular. Too busy teaching the girls and organizing a party that will define popularity, they handle their babies to a British nanny, who eventually abuses them. Carm, concerned about the unpopular group, decides to help them, but neglects her baby. The twins become too powerful and turn against their teachers. Nic and Mary Cherry decide it's time to stop them and put things back on track. Meanwhile, Sam decides t