Carly is a young teenager living in Seattle. When her friend Freddie accidentally leaks a video of her and her best friend Sam onto the Internet, they decide to create an online web show.

Carly gets caught in a custody battle between her brother and grandfather.

CarlyC Sam and Freddie think it will be good for their show if it is critiqued; Carly insults an 11-year-old critic, and is worried he will give a bad review.

Carly, Sam, and Freddie shoot their Halloween web cast from an apartment that is rumored to be haunted. When creepy things start happening, the friends worry that the ghost rumors just might be true. Meanwhile, Spencer forgets to buy Halloween candy, and he ends up giving children odd and random objects, which leads them to the point of rolling him down the ocean with him inside a giant pumpkin that he carved. During the show, Sam shows viewers how to pull Halloween pranks using masks.

Freddie finally gets a girlfriend, but she's an apparent fan of Carly's rather than Carly herself.

Carly and Sam try to break the world record for the longest web-cast.

Nevel Papperman is back, and instead of trashing iCarly in his articles, he has directly sabotaged the website itself. Meanwhile Spencer persuades the Plain White T's to perform on Carly's show as a favor for preventing lead singer Tom Higgenson from being hit by a falling sign at the mall. But how do they expect the band to perform on a show nobody can see?

A ridiculous technicality costs Carly her straight A average. The next day as Sam is being punished, she manages to fix Carly's grades with the school computers(and for some reason, Freddie's), and makes her promise not to tell anybody. Because Sam's scheme involves Freddie, Carly decided to tell only him about it, and Carly can't decide whether the guilt over Sam's amateur hacking or Freddie's sophisticated effort to undo the fix will gnaw away at her conscience first.

For the science project, Carly and Sam choose to raise chicks, and they have to search the apartment frantically when they hatch sooner than anyone expected.

Carly, Sam, and Freddie get a cash-boost for their show when a shoe company gets them to promote a trendy new pair of shoes. The trouble is that the shoes are extraordinarily bad, and the backlash they get at school and on the web hits them hard. It doesn't help that they find themselves unable to break out of their contract with the shoe company... or are they?

Plans for the landmark 50th web cast of iCarly are at risk of being curtailed when Sam gets detention. Realizing she can't do the show without her co-host, Carly and Freddie try to get in trouble themselves, so they can do the live web cast from their school's detention room. However, deliberately trying to get detention proves to be far more difficult than Carly can imagine, and even harder for Freddie.

Carly's fame draws the attention of a private boarding school, who want her to enroll as a new student.

Realizing that his time with Carly and Sam has become too girly(despite his lingering crush on Carly), Freddie seeks some "guy time" with Spencer, which happens to be a fencing class for which Freddie turns out to be quite the swordsman. During this period, Freddie gets caught up in the rivalry between Spencer and a snobbish posse of fencers lead by Doug Toder, and finds himself competing with him in a duel. When his fretful mother finds out, she reveals a family secret in a last-ditch effort to try to talk him out of the competition. In the meantime, Carly is forced to endure and prepare for an upcoming visit from some embarrassing, ultra-geeky relatives.

Carly tries to set up Gibby & Shana by playing a game called "I Win A Date".

Lauren Ackerman (Jessica Makinson), a history teacher at Ridgeway School, becomes depressed and angry after her boyfriend breaks up with her and begins to take her anger out on her students.

Carly and martial-arts champ Shelby Marx (Zoey 101's and Spectacular!'s Victoria Justice) agree to have an exhibition fight for charity after Carly jokingly challenges her to a match. Unfortunately, Carly accidentally falls on Shelby's grandmother during a press conference. Thinking Shelby wants revenge, Carly backs out of the fight, only to be ridiculed as a coward. Carly visits Shelby and apologizes, and the fight is back on. However, Nevel Papperman alters a clip of the press conference to make it look like Carly intentionally tackled Shelby's grandma to dupe Shelby into fighting Carly. Shelby, furious, attacks Carly for real during the match, Carly then holds Shelby's leg for the rest of the "fight".