When Nikki's friends do a going-away party at Grind Me for her, Nikki's parents said they would stay as her father would keep his old job, but Nikki objects and admits that it should be time for her to "grow up" and that she should finally make some self-sacrifice after everything that her parents have done for her. So she agrees to move up North to Iqaluit so her father can get the job. Upon departing, Nikki attempts to call Jonesy on the cell phone just to tell him that she doesn't want to break up with him, and Jonesy wishes the same. The gang says good bye to Nikki and tell her they'll talk to her soon, as she bids them one final farewell. It finishes with Jonesy saying "Maybe everything will be okay after all..." The episode, and the series ends, with the camera zooming out to a wide shot of the mall food court as all the supporting characters in the show are seen walking through.

A Sadie Hawkins dance comes to the mall where the girls ask the guys out. While Jude and Wyatt struggle to get chosen, Caitlin and Jen try to overcome the pressure of asking the guys. Nikki becomes friends with a new Khaki Barn employee Jean, but spends so much time with her, she forgets to ask Jonesy to the dance, and Caitlin needs to find a way out of date with Wayne after he mistakenly thinks she asked him out.

Nikki's father is accepted for a job up in Iqaluit, and Nikki doesn't want to go, so Jonesy gets Caitlin to tell Mr. Wong that his interview was moved to Grind Me at the mall, and Jonesy pretends to be Mr. Wong at the real interview, when he tries to do everything he can to make him not get the job. It doesn't work, however, because he gets the job anyway. So Nikki has to convince her parents to let her stay but she has to find a place to stay first. Jen's mom said she could stay with them for a semester but Nikki's parents don't want her living under the same roof as her boyfriend, so Nikki and Jonesy pretend to break up so she can stay with them. But Nikki finds out that living with Jen is too hard. Meanwhile, Jude loses his house keys while his parents are away so he temporarily lives in the mall, where he is repeatedly hounded by Ron the Rent-a-cop.

Starr goes goth, and Jude goes goth as well to impress her. Meanwhile, the rest of the gang visits the movie theatre during a power outage at the mall.

As the wedding between Jonesy's Dad and Jen's Mom approaches, it's all too clear that the amalgamation of the two families is not going to be smooth sailing. When Grind Me gets double booked for their Mom's wedding shower AND Jonesy's Dad's Stag, all heck breaks loose! The parents are finally forced to make a decision to postpone their wedding until the children are grown and out of the house. Can the kids and their parents work things out? Meanwhile, The Clones accuse Nikki of stealing merchandise, and desperately call in Ron the Rent-a-cop to prove it.

Caitlin cheats on her hairdresser for a famous stylist, but her boyfriend thinks that she's cheating on him instead after hearing something from Jude. Meanwhile, Underground Videos is sold to Tajma Home Video, so Wayne, Jude, and Wyatt find a way to sell it back.

Jude starts a long-distance relationship with a girl from Australia. Meanwhile, Wyatt gets fired from Underground Video, and starts to work at "Burger McFlipsters". (Alan Park guest stars as Tim.)

Nikki and Jonesy spend some quality time at Jonesy's house, until Nikki needs to use the bathroom next door to Jonesy's bedroom, and a faulty flusher causes a flood. Meanwhile, Jude starts secretly dating a senior named Melinda Wilson. (Rachel Wilson guest stars as Melinda Wilson.)

The whole mall becomes infested with zombies. Jen has a giant zit on her forehead, and only the gang, Ron, The Clones, and Darth are left. The Clones go first because of their stupidity. Ron and Darth both act surprisingly more heroically than usual, and both sacrifice themselves to save the rest of the gang while fighting off many zombies. They find out that Starr is alive too and Jude comes up with a plan to kill the Zombies. It works for a while but fails later. The group gets bitten, Jude and Starr are left, they kiss, and then Zombie Jen pops her zit, and Jude pukes in Starr's mouth again. Jude wakes up and finds that he is dreaming. But when he goes to the mall that morning, he sees that Jen has a zit on her forehead and screams in horror.

It's Jonesy and Nikki's three-month anniversary. The two try to find gifts for each other, which leads to a big misunderstanding. Jude crashes at Wyatt's place because his aunt is out of town.

Jonesy is scared to donate blood because of a childhood experience, unlike Jude who is obsessed with donating blood because he wants the free donuts the nurse gives away to the people who donate. Meanwhile, Caitlin and Jen wait in line for a once-in-a-lifetime sale at Albatross & Finch, but the line to get in is extremely long.

Nikki falls for the new salesman at Albatross & Finch named Hunter, so Nikki asks Caitlin to ask him out for her but Caitlin ends up dating him instead. Meanwhile, Jude and Wyatt start a psychic hotline because the real phone number is only a digit off Underground Video's number.

Caitlin lies about being in college to win the heart of a cute college boy, while Jude attempts to win a "Roll Up the Rim to Win"-style contest at Grind Me.

Jen's mom asks Jen if she can take care of baby Emma, until Coach Halder calls Jen to report to work at the Penalty Box. Jen then assigns Jonesy to take care of baby Emma on her behalf while she works. Jonesy gets bored at home, so he takes Emma to the mall, but baby Emma kept crying so he gives her to Nikki to look after. Nikki, meanwhile, experiences weird dreams about being in a relationship with Darth, so she passes the baby to Caitlin. Baby Emma then vomits all over Caitlin, who then gives her to Wyatt at Burger McFlipster's. Needing to get away from his new co-worker Wayne, Wyatt leaves with the baby and heads to the ice rink to give her to Jonesy, but Jude puts her on the Zamboni, which then drives off into the mall after Jude accidentally disengages the parking brake. Ron the Rent-a-cop gets baby Emma and gives her back to Jen, who then finds out her parents are getting home

Jen's hotter and more popular older sister Courtney comes to town, and the entire gang abandons Jen, with the guys astonished by Courtney's looks, and girls loving to listen about her life, ex-boyfriends, and trips abroad. But when Courtney takes the gang to a nightclub using a Fake ID, Jen is out to prove that she's more fun than her sister, but accidentally rips her dress while dancing, exposing her boobs.

Wyatt tries to get Serena back, and finds out that Wayne might be his only hope because of his ability to choose the perfect movies for broken couples. Meanwhile, Jen wants to end her relationship with Charlie Dobbs, but the gang loves him and persuades Jen to keep a relationship with Charlie, much to her dismay. Also, Jonesy has an argument with Nikki over her style, and Caitlin's blender is broken which stands in the way for the bonus that she wants.

Jonesy, Wyatt, and Jude agree not to shower or clean themselves for a week to determine which one of them smells the worst and the best, with Nikki, Jen, and Caitlin as the judges. Meanwhile, Caitlin persuades her new boyfriend to try and get a good baby picture in a brand new "Make A Baby" booth that's just been added to the mall, but every picture she takes with him ends up ugly. When Jen goes in with Jude, their baby is perfect, which makes Caitlin break up with her boyfriend and look around the mall for cute boys she can go in with to have a perfect baby.

Caitlin falls for a guy named Sawyer, but she feels the needs to make her breasts bigger since Sawyer is into large-chested girls. Caitlin then buys a water bra, which gives Jonesy the idea to sell bras with water balloons stuffed in them. Meanwhile, Diego and Robbie drive Jen completely nuts since Jen hates her three stepbrothers, but finds out her mom is pregnant and is desperate to find out if it is a girl or a boy.

Jen and Nathan are still in the elevator trying to find a way to get to the hospital in time so Jen can help her mom give birth. Jude unknowingly chats up with a dead body, and Jonesy becomes a clown to entertain the kids at the hospital, while Nikki is in love with newborn babies in the hospital's nursery, but she accidentally puts two babies in the wrong cribs when she put them back. She then goes to Jonesy for advice on how to switch the babies back, eventually leading into Nikki telling Jonesy that she loves him. She then disguises herself as a nurse in an attempt to switch the babies back and prevent a couple from mistakenly taking the wrong baby home. In the end Jude takes a picture of everyone gathered around the new baby, Emma.

The guys have a bit of a shock when all three girls' cycles synch up and they all start behaving - well - differently. In fact at first the girls are confused too - Caitlin's snappish, Nikki's emotional, and Jen's too doubled over in pain to do anything. Unfortunately, their behaviour is threatening to disrupt the boys' biggest movie night in a year... and the guys NEED to get the tickets from Caitlin's purse. Will Jonsey's new job at Super Terrific Happy Sushi under the training of Hiro the Sushi Samurai help Jonsey defeat the dragons and get the tickets... or get him fired?

The gang is in agreement - Jen is always butting into everyone else's business. In fact, they’re convinced that it is physically impossible for Jen to keep her opinions to herself for 24 hours. Jen, being competitive in nature, decides to take that bet. The gang have some fun toying with Jen and come up with wild plans that they know that she knows are a bad idea in order to win the be. Meanwhile, Jude’s been acting strangely lately, skipping skating sessions, forgetting about movie marathons with the guys, losing passion for his Stick-it art - it's very anti-Jude. After much sneaking around and spying on him (Jen tries to resist but gives up and takes a loss on the bet - this is way too interesting!), the gang learn that Jude's ""big deep dark secret"" is that he’s flunking several classes at school. They all get together to help him get his grades up... but will Jude have to repeat a year?

Starr wants to help Wyatt control his anger, and introduces him to a small poet society. All goes well until his friends find out and Caitlin breaks wind during one of his poems, causing the whole gang to laugh and embarrass Wyatt. (This is a reference to the movie "Dead poets Society, starring Robin Williams.)

The gang tells Caitlin their deepest secrets, and she tells them to her new boyfriend, Dustin. Later, Dustin volunteers to get hypnotized at a hypnosis demonstration and is forced into blurting out all of the gang's secrets, except Caitlin's, to the entire mall.

Starr wants to help Jen during the Christmas rush by calming her down, so she teaches Jen yoga. Also, Nikki does not want to go to Acapulco with her parents. Meanwhile, Caitlin loses the will to shop. (The title is a reference to Walking In A Winter Wonderland.)

Tricia frames Caitlin for stealing clothes from Albatross & Finch. Meanwhile, Jude sees a mannequin in a display window, which looks just like him wearing formal wear but soon finds out that another store uses his image for a mannequin in a thong.