iSaw Him First
In the second-season opener, Carly and Sam both develop a crush on Freddie's "nerd" pal, Shane. When they cannot decide who should date him they decide to go by the first one to kiss him, but he has to be the one to do it. They constantly try to get into situations where he is close to kissing them, and always become unsuccessful. Meanwhile, Spencer hires a repairman to fix the elevator, but the repairman proves to be no help at all, just a dancer. Because of the broken elevator, Shane accidentally falls from the iCarly studio to the basement, when he finds out that Sam and Carly are competing for him and angrily walks away from both. When they visit him at the hospital Carly kisses him, but it is by then too late.
iStage an Intervention
Spencer finds a Pak-Rat video game cabinet in a junkyard and becomes addicted to it, whilst procrastinating on a commissioned Labradoodle sculpture. To curb his addiction, Carly brings Sasha Striker, the top Pak-Rat player in the world, to compete against Spencer to defend her title as the world champion of Pak-Rat. Meanwhile, Freddie experiences a streak of "bad luck" after not forwarding and deleting a chain email, passing it off as a superstition.
iOwe You
Sam owes Carly and Freddie $526, so she gets a job to earn the money, and pay them back. Carly, Sam, and Freddie make a broadcast on iCarly to all their fans to donate money to Sam. However, they find out its illegal to solicit money over the internet. Meanwhile Spencer tries to impress an attractive single mom by helping her daughter sell fudgeballs, an equivalent to Girl Scout cookies, but two scouts stole Spencer's place at the market. Spencer comes up with the idea to send every iCarly fan who sent them money to send them fudgeballs. Carly and Freddie then hire someone to give the money they earned to Sam in a tip. At the end, everyone enjoys what Sam got with her money except Spencer.
iHurt Lewbert
Lewbert, Carly's doorman, is injured during an exploding muffin basket prank. Spencer suggests that Carly, Sam, and Freddie help him until he's back on his feet, but it is more easily said than done. When Freddie's mother takes over, she makes it look easy, but leaves the group extremely concerned. Freddie's mother and Lewbert fall in love. Meanwhile, while using a CB radio, Spencer upsets two truckers nicknamed Porkchop and Sledgehammer.
iGo to Japan
The team, along with Spencer and Mrs. Benson, go to Japan when iCarly is nominated for the iWeb Awards. After an intensely dangerous ride (where they jump out of the plane but make it out safely), they are all sabotaged by 2 competing Web Show Nominee's; Kyoko and Yuki. Their cousin's wrap them up in seaweed in a massage room and lock the door while Kyoko and Yuki ditch the trio in the middle of nowhere and flee. Carly, Sam and Freddie must each return to Specner and Mrs. Benson -- in time for the iWeb Awards.
iPie
When the group's favorite pie shop closes down due to the death of the head chef, they go out to find the recipe for their favorite pie. The only person believed to have the recipe is the chef's granddaughter. She agrees to give them the recipe if she can go on a date with Spencer. She takes it a bit too far, and confesses that she never owned the recipe. Carly, Sam and Freddie hatch a plan to find the recipe. Meanwhile, Mrs. Benson's cousin's baby visits for a few days, making Freddie uneasy about it because his cousin always has a blank expression when she sees Freddie. Freddie tries finding a way to succeed in making his cousin laugh.
iChristmas
When Spencer makes an electromagnetic Christmas tree, the tree bursts into flames, which makes Carly furious at him because the fire mauled the presents Carly got for Spencer. Carly then wishes that Spencer was born normal. Carly's guardian angel, Mitch, makes this wish come true, surprising Carly. The next day, at school, Sam is absent, Freddie was never friends with Carly, and to make things worse -- Nevel Papperman is Carly's boyfriend. Carly questions Mitch about Sam's disappearance, and Carly is taken to the Juvenile Detention Center, where Sam is being held. Carly finds out that Sam was never her friend, either. Carly returns home and then is told that Mrs. Benson and Spencer are now engaged, making Carly angry at what the world has become. Carly then walks up the stairs and finds out that, because Sam and Freddie were never her friends, iCarly never existed, either. Carly begins to sob, realizing how much the world would change if Spencer was born normal. Mitch turns the world back, making Spencer born abnormal. Carly is now happy with the electromagnetic Christmas tree, and Carly, Sam, Freddie and Spencer have a good Christmas together in the end.
iKiss
In retaliation for putting a dead fish in his locker, Freddie handcuffs Sam to Gibby. Later, Sam overhears Freddie make a confession to Carly that he has never had his first "real" kiss, implying that his former girlfriend Valerie, kissed him for half a second at school with a bunch of other kids hanging around. To get back at Freddie, Sam exposes his secret on iCarly. Freddie is then mocked at school about this, and starts not going to school, talking to anyone, or going to iCarly rehearsals. Carly makes Sam feel guilty about this, so a regretful Sam exposes the same secret about herself. She goes and apologizes to Freddie. After she apologizes, both of them feel dumb about not kissing anyone, so they kiss each other and promise not to tell anyone about it, not even Carly. Meanwhile, Spencer trains to be a famous Seattle Cobra football player.
iGive Away a Car
Carly, Sam and Freddie host a contest for a free, new car. The winner, shockingly is Nevel Papperman. When Freddie and Sam goes to retrieve the car for him, the two find out that the car did not exist. Carly, being disappointed with the news, starts to question Nevel on how he won the contest. The three find out that Nevel was the one who created the contest and the car, but iCarly still must provide him with a car. Meanwhile, Spencer buys a prop from a movie online, but finds out that he was simply fooled by a replica, and Carly decides to give the prop to Nevel as his new car to keep iCarly from getting shut down for fraud.
iRocked the Vote
When iCarly convinced their viewers to vote for David Archuleta on a show entitled "America Sings", their opponent singer makes Carly, Sam and Freddie feel guilty. To make it up to him, they try to help him out by creating a music video with the singer. Meanwhile, Sam teaches Spencer to lie when he gets a letter that claims he has a movie that is 10-years overdue.
iMeet Fred
When Freddie offends an international internet sensation, Fred, he gets crushed and says to all of his fans that he will not make anymore Fred videos. Carly, Sam, and Freddie soon start losing friends and aquaintances that are fans of Fred. On the other hand, Spencer puts a magic 8 ball-like toy (called a "Magic Meatball") in control of his life.
iLook Alike
Carly, Sam & Freddie are thrilled when they are invited to a mixed martial arts fight to do an iCarly bit filmed backstage, though Spencer refuses to let them go. Upset by this, they set up a risky scheme to sneak out by hiring some look-alikes to fool Spencer into thinking they are still there. Meanwhile, Spencer builds a large version of a newton's cradle.
iWant My Website Back
When Spencer gets a new credit card, the iCarly.com domain is no long in control of Carly, Sam, and Freddie. Luckily, Mandy (who was in a season 1 episode) returns, to buy their website back for them, though a phishing scam set up by Nevel puts the website in his own hands. Meanwhile, Spencer makes a mistake in an order, causing him to end up with 200 pillows.
iMake Sam Girlier
Sam develops a crush on a classmate, so Carly gives her a lesson on how to attract him by acting feminine so she is a good person. At the end of the episode, Sam beats a bully up. Meanwhile, Spencer starts sporting his tuxedo daily because he thinks it's the reason why a woman he met likes him.
iGo Nuclear
Carly has to do a project for green week, so she makes an electric scooter. But, it can only go for 4 miles per hour and it bursts into flames, so she is given the weekend to make a new project. Spencer brings in a good-looking Science geek named Cal who helps her make a very unique green week project which turns out to be highly illegal, which gets Cal arrested, but it is not shown when the police catch him.
iDate a Bad Boy
Part 1: Carly and Spencer become upset when their new neighbor Griffin steals the motorcycle that Carly bought for Spencer in iPromote Techfoots. When Spencer let's Griffin off the hook, but Carly becomes upset. However, when Spencer later goes out to get smoothies, he returns to find Carly and Griffin kissing on the couch. Spencer becomes furious, forces Griffin to leave, and forbids Carly to see him, though he eventually allows them to resume dating. Meanwhile, Sam pays Freddie $50 to make a website and has a lawyer write them a contract. Freddie cannot keep up with her demands and tears up the contract, canceling the deal; Sam later makes $1,000 for selling the website.
Part 2: When, Carly finds out that Griffin collects "Pee Wee Babies", she and Sam make fun of him, unaware that Griffin is listening in. He eventually he dumps Carly. Meanwhile, Sam dreams that a monster scares her and eats her soup. Spencer tries to help her but later ends up dreaming about the same monster.
Part 2: When, Carly finds out that Griffin collects "Pee Wee Babies", she and Sam make fun of him, unaware that Griffin is listening in. He eventually he dumps Carly. Meanwhile, Sam dreams that a monster scares her and eats her soup. Spencer tries to help her but later ends up dreaming about the same monster.
iReunite with Missy
Carly's old friend Missy returns to Seattle, and tries to replace Sam. Carly doesn't believe Sam, but when she finds out, she splits her friendship with Missy. Feeling threatened by Missy, Sam goes to Freddie for help. At first, Freddie does not believe her, but soon does. Near the end, Freddie wins a 6-month cruise and gives it to Missy to help Sam. Missy, however gets seasick very easily and vomits almost the whole way. Meanwhile, Spencer begins to pack up to go camping with some of his friends, and gets trapped in the apartment's basement. Chuck, a character reappearing from iHurt Lewbert, permanently traps Spencer for getting him grounded (as shown in iHurt Lewbert) for two days. In return, Chuck decides to lock him in the basement for an equal two days.
iTake on Dingo
Carly, Sam, Freddie and Spencer go to Hollywood to stop the writers of a Dingo Channel show "Totally Teri" from stealing anymore of iCarly ideas. Spencer and Freddie look for the frozen head of Charles Dingo.
iMust Have Locker 239
When there is a contest to see who gets the biggest locker in their school, Sam and Freddie both win and have to share the locker. Carly begs Spencer for art lessons, but she ends up not liking his teaching style. Spencer and Ms. Fielder wind up painting each other.
iTwins
When Sam's identical twin sister Melanie visits Carly and Sam, Freddie just thinks that Sam is pretending to be Melanie, and that Melanie doesn't even exist. So, to prove that Melanie didn't exist, he asked her out on a date, thinking she would say no because she was really Sam. But, she accepted.
iFight Shelby Marx
While broadcasting an episode of iCarly, Carly jokes, saying that she can beat a boxer named Shelby Marx. Shelby agrees to an exhibition match for charity and publicity. Carly is fine with it at first, when Shelby says that she won't really hurt Carly. But, when it looks like Carly pushed Shelby's grandmother down when she really didn't, Shelby is angry and she wants to really hurt Carly.