In response to Skye's nearing birthday, Carl has C2 find a job to make some money for a present. Little does Carl know that C2's new job is being a nude model at an art school. Things go from bad to worse after Carl finds that Skye's party will take place next to the art school where a nude Carl painting hangs.
Carl gets accused of cheating on a Biology test after C2 gets him a 105%.
C2 gets tonsillitis and has to remove them by surgery. This raises suspicion because Carl already had his tonsils removed years ago. Carl's secret is in risk of getting found out and Carl has to play smart in order to stop it.
C2 invites Shane, Carl’s cousin and his family to stay at his house. Carl strongly hates Shane, especially because of the magic tricks he tries on Carl. To get rid of him, Carl starts a magical war, but he’s not sure if he can win.
Carl has a choice between helping Skye save a tree or entering a skateboarding contest. He tells C2 to go help Skye but nothing turns out as Carl wanted.
Carl is forced to hand out candy for Halloween, but makes use of C2 to handle it for him so that he can get to Skye's party. Unfortunately, C2 believes that everything is free on Halloween and ends up helping a burglar (mistaking him for a trick-or-treater) rob a store! Mr. Agar spots him, and he's about to tell the police. Will Carl escape the arrest AND save C2 from the burglar in the house all in one night before the 'rents get home?
When Carl wants to ask his dream girl, Skye, to 'hang on a full time basis,' he realizes that his cocky ways 'don't fly,' where C2 has a natural sensitivity for romance. Carl sends C2 to win Skye over, but at the end of the day Carl realizes that Skye likes him for 'who he is' and although C2 attracted Skye initially, it is Carl she stays around for.
Distracted by a hockey game, Carl lets C2 sign him up for Adventure Week, but when C2 signs him up for the Eco-Survival Ordeal instead of the Ultimate Cabin Experience, Carl tries to have it both ways and winds up creating an Ultimate Ordeal
After a disaster concerning C2 making a fool out of himself while taking the annual family Christmas picture, Carl tells C2 that there is no such thing as Santa. Unfortunately, his parents think that Carl is too grown up for Christmas, so Dr. Mom returns all the gifts: NOO! While C2 runs off to search for Santa, Carl searches for C2 and he is about to learn the true meaning of Christmas.
When Carl and C2 switch out playing the lead role in the school play in Carl's attempt score a big kiss with Skye, Carl's 'stage fright' is revealed.
Carl tries to earn a quick hundred bucks by entering the Coolest Skateboard Video contest, but when he leaves the filming to Jamie and C2, the video exposes C2's dog-like abilities and Carl is exploited as a freak on national TV.
Carl and Skye are teamed in a health class assignment and become partners in raising a robotic baby, but when Carl leaves the baby in C2's care, he scans every parenting book and becomes overzealous, overly protective dad. Carl has to rescue the baby and his relationship with Skye while C2 cope with his empty nest.
Lorna Lookman finally finds out the way to Carl’s heart. She bargains with Carl and tells him if he goes out on a date with her, she would give him a preordered copy of Carl’s favorite game, which he dearly wants. As a back-up solution, he sends C2 on the date. However, at the end of the date, it all ends as a disaster for Carl - Skye is on the verge of breaking up with him, and C2 falls in love with Lorna.
C2 makes friends with some bullies in Carl’s detention, which turns Carl into their main target.
Carl let's C2 work on his science project, but when C2 buys a snake as part of the project, things become difficult for Carl, who is afraid of snakes.
C2 is getting popular with Carl’s friends and slowly begins to take away his social life. Is C2 really going to replace Carl?
Carl starts a business after finding out that his neighbors are willing to pay him to clean their house. Word had gotten out that one of Carl's workers, C2 is good at cleaning houses. But in the end, Carl's company crashes and burns, forcing him to go out of business.
Thanks to the help of C2, Carl becomes a teacher's pet. Mr. Agar gives him access to the teacher's lounge where Carl touches the teacher's computer for the fun of it. On the computer, he accidentally changes everyone's report card to straight A's.
Barney Crashman gets a new gig at an infomercial where he would try to sell his own breakfast dispenser. However, when Carl sends C2 to the 'take your kids to work day', the owner of the infomercial company likes C2 more, forcing Barney to go off the stage of his dream job.
Chad is a new kid at Carl's school and has his eyes on Skye. Chad is a very nice, sweet, and helpful guy that would tell everyone that he has always been a good kid. Jealous that Chad is trying to take his move on Skye, Carl tries to find out anything bad about Chad. Meanwhile, Jamie tries to find out a great story to win the news anchor contest. Fortunately Carl finds out that Chad is the "Locker Thief" of the Mapleview High; eventually Chad is caught in the act by Lorna and Skye no longer cares for Chad at the end.
It's basketball season at Carl's school and C2 tries to show his team spirit by disguising himself as Marshall Maple-leaf, the team's self-proclaimed mascot. Meanwhile, Chloe's boyfriend Damien learns that he has a natural talent for basketball and makes the team, but Chloe intends to see her school lose the game.
After a tree crashes through their bedroom windows, Chloe and Carl must share the living room, until the repairs are done, while C2 spends the time at Jamie's house.
Expecting a bland and boring party, Carl leaves C2 to be with the family on Carl's birthday, but Carl soon realizes that it's a big, super-cool surprise party.
Carl's science class is dissecting frogs.
Carl decides to get his tongue pierced in order to impress Skye only to remember that C2 needs to get one too or they won't be able to switch out anymore.
Carl gets angry at C2 after he triggers a virus on his computer, erasing all of his files, and most importantly, his blogs. C2 calls the cloning facility and boxes himself up with a "Return to Sender" sticker to get sent back. This episode features many flashbacks from the series.
Carl and Jamie decide to go camping out in the woods and out of civilization (also in Jamie's attempt to catch Bigfoot on tape), so C2 is taking Carl's place for his family. But Carl gets lost in the scary dark woods and it's up to Jamie and C2 to save him and bring him home. Meanwhile, Chloe gets sick and demands her parents to take care of her every minute of the day.
C2 has his first bad dream when eating to much Halloween candy.
Thanks to C2, Carl accidentally shreds a very rare copy of a comic book, forcing Carl to either repay Steve (the store's owner) or be banned from the store. Since Carl and Chloe's parents refuse to give a raise in allowance to either of their children, they bribe them: whoever gives them his/her first paycheck gets a raise. Carl gets a job at "Buckineer Burger" (giving C2 the opportunity to work with Lorna) while Chloe runs her own version of an ice cream truck. Meanwhile, Jamie makes a new video news story: "Do Buckineer Burgers beef up your life?"
Mr. Agar got the mayor to turn the skatepark into a botanical garden! With Skye's help, Carl organizes a protest to bring back the skatepark. At first, the protest goes great, but then Mr. Agar says that if the botanical garden stays, he will give the students less homework, Skye quits on Carl AND the protests are getting ugly. Will Carl get his skatepark back? Meanwhile, Jamie and C2 desperately try to get Wheels Wallis to sponsor and help with the protest, even if it means doing the deadliest skateboarding move in history.
Jamie bets that Carl can't function two days without C2. To make this bet interesting, if Jamie wins, he gets Carl's skateboard for a month. If Carl wins, he gets Jamie's camcorder to fool around with for 30 days. It's not easy: Carl has to help out Skye at the dog shelter AND he has a biology test the next day. Meanwhile, Chloe tries out her new hexing spell book, and C2 unleashes his inner dog, with the help of Rex and the pup's friends, during his few days off.
C2 beats Carl at virtual snowboarding repeatedly, and eventually also gets the high score, beating out Ron Bronson! Ron later challenges Carl to a virtual snowboarding showdown, so Carl uses his ultimate weapon: C2. But because of Chloe's obsession to get rid of pure white snow, the game busts, leaving C2 with a broken ankle and an excuse for Carl to be respected to the full extent at school. However, his fans discover that his ankle isn't really broken, and when Ron Bronson finds out, he challenges Carl to a REAL snowboarding showdown. Who will win? Meanwhile, Chloe and Damien attempt to get rid of all the white snow, hoping that the rest of winter will be dark and desolate.
Carl was chosen by Jamie to be part of his zombie movie, but his reactions quickly change when Jamie casts Lorna as Carl's lover. But thankfully, C2 can save Carl...or so Carl thinks. C2 is no match for Carl in terms of acting skills, so Carl now has to choose between kissing Lorna, or giving up on the film and letting down his best friend.
Mr. Agar puts Carl on the school spring dance decorating committee as a punishment for slacking in class. Since Skye is busy lying down in front of bulldozers to protect a nest of burrowing owls, Carl brings in C2 to help with the decorations, so both of them are at school. The mess starts to happen when Chloe and Damien are also put on the committee as punishment. The day even gets strange for Lorna, as she keeps seeing two Carls! Her suspicion of Carl having a clone is further backed-up when she finds his blog! With the help of Jamie, Carl will have to play it smart to get out of this. Meanwhile, Chloe and Damien turns the "Spring has Sprung" dance decorations into destruction and chaos, much to Chloe's satisfaction.
Carl is banned from the library (by a haunting librarian) for a massively overdue book about puberty. Fortunately for Carl, he has his trusty Internet to finish up a geography assignment due the next day -- not. Carl's computer was busted and when he tried to borrow Chloe and Dr. Mom's computer, both didn't work. The fearful C2 believes that all these grievances is due to the "Crashman Curse" and the librarian. With advice from Chloe, he decides to make a sacrifice in order to be relieved of the curse, Carl's computer.
Carl forgets it's mother's day. C2 had written a story in the newspaper (accidentally putting in C2's name), and wins. He wins the prize of going with his mother to a mother and son spa.
C2 gets a feeling he is being watch by something out of this world!
C2 signs Carl up in the " Teen Superstar " contest and Carl must take the stage after hearing C2's horrible singing.
Carl finds that being famous is harder than it looks.
Carl sends C2 to get ticket's for his favorite band, but after C2 inadvertently breaks them up, Carl becomes the most hated person in town.
Carl promises Skye he will become a vegan, Will he keep the promise, or bail and just make C2 keep his promise as usual.
Carl notices C2 is having malfunctions so he has to take him back to the cloning lab in this hair-raising adventure!
After seeing C2 run, the school principal offers him a spot on the football team. Seeing this as an opportunity to get out of trouble, Carl let's C2 join the team, but, while Carl gets all the glory everyone else, C2 is the one taking all the pain.
C2's doggy biscuits " Kosmic Kible " make C2 able to predict the future. All goes well until his prediction of Doomsday happens. In this episode Carl swears several times, but it gets bleeped out.
After eating a mouldy sandwich in Carl's locker, C2 begins to age exponentially.
After Lorna see Carl and C2 together, Carl has to convince her that his clone is his lookalike cousin, Carlotta.
After seeing too many action movies, C2 becomes paranoid about Carl's well-being.
When C2 gets head lice after helping Sky at the animal shelter, both Carl and C2 have to shave their heads.
It's Christmas time and Carl's grandmother is coming for the holidays. Will she discover Carl's secret?
After C2 rescues a rich old lady's cat, Carl gets the woman to adopt his clone so that he can live like a rich kid.
The Crashman house is placed under quarantine after Carl sends C2 to school to take his flu shot for him, and the vaccine produces bizarre side effects on C2's doggie DNA.
Carl wants to show a computer game he has invented to a computer gaming tycoon known as Killahertz.
C2 drops an olive in his dad's time machine causing an alternate universe.
The Crashman's go on a road trip and end up lost in the woods with a crazy maniac with a chainsaw.
A video game creator creates a new game where you make your own avatar and battle others for prize money. Carl is doing great until Skye and him are the final two contestants.
Carl becomes a counsler at a summer camp so he can make a move on Skye one of the other counseler's
Carl's dog Rex accidentally gets cloned and he can talk.
Skye starts a protest for exploiting women at a local contest and somehow Carl gets signed up and has to wear a " sexy " thong.
Carl meets a foreign exchange student.
Carl gets into trouble and has to do lots of community service.
C2 becomes a superhero named Zapman.
Mr. Agar becomes principal and for some reason he knows about all the bad stuff the students are doing. Everyone blames Carl. Later it is revealed Mr. Agar put a listening device inside Carl's MP3 and that's how he knew everything.
Carl steals a boat and throws a party on it. The boat tips and everyone leaves. But Carl, Mr. Agar, Chloe, Jamie, Janet, Barney, Damion, Renee, C2, and Lorna are still on it. Someone cuts the anchor rope and they all get marooned on an island. Teletoon viewers were asked to go to the website and try to discover who cut the rope. It is later revealed who it was.
A mystery episode. Watch to find out the mystery!
The cloning lab makes an announcement that it will offer human cloning to the public. Skye decides to start an anti-cloning movement. But how will she reacts when she learns that Carl already has a clone?