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 and Sam compete with Freddie and Spencer to see which team can increase the number of hits on Carly's website, using the most elaborate techniques available to each team. The losers have to touch the wart of the Bushwell Apartment doorman, Lewbert - a man that Carly & Sam are convinced is the meanest man alive. Judging from their hidden camera in the lobby of Carly's apartment building, it's easy to understand why they hate him.

After enduring Ms. Briggs' lesson on traditional Scottish folk dancing, Carly and Sam call for their viewers to send videos of their own dance routines. Soon enough, the site is filled with so many video files for them to review that it starts to go to their heads.

For a potential web-cast, Carly and Freddie try to find out if Mrs. Briggs' hostility extends beyond the classroom, and end up getting trapped in her house.

Carly y la campeona de artes marciales Shelby Marx (interpretada por Victoria Justice de Zoey 101 y Spectacular!) acuerdan tener una pelea de exhibición benéfica después de que Carly la desafía en tono de broma. Desafortunadamente, Carly cae accidentalmente sobre la abuela de Shelby durante una rueda de prensa. Pensando que Shelby quiere vengarse, Carly se retira de la pelea, solo para ser ridiculizada como una cobarde. Carly visita a Shelby y se disculpa, y la pelea vuelve a estar en marcha. Sin embargo, Nevel Papperman altera un clip de la rueda de prensa para hacer parecer que Carly derribó intencionalmente a la abuela de Shelby para engañar a Shelby y hacerla pelear con Carly. Shelby, furiosa, ataca a Carly de verdad durante la pelea, y Carly luego sostiene la pierna de Shelby durante el resto de la "pelea".

Principal Franklin is fired after appearing as a guest on iCarly and is replaced by Mr. Howard, the math teacher, and Miss Briggs, the English teacher as co-principals. Spencer hires a rodeo star to teach him how to ride a mechanical bull.

The cast introduces various bloopers and outtakes from the entire series.

Bigfoot fever hits Seattle when hikers take some fuzzy footage of a suspicious figure in the woods. After an expert validates the footage on the web show, Carly convinces the gang to take Socko's RV upstate and join the search for Bigfoot.

Carly and Spencer are being evicted from their apartment, and the gang reminisces about their time in Bushwell Plaza. Although, their memories may not be quite how we remember them.

Carly está triste cuando su padre no puede acompañarla a un baile militar; Sam y Spencer arreglan una motocicleta; Gibby se queda con la cabeza atrapada en una "máquina de cabeza artificial" (porque vendió la suya en la casa de empeño); Freddie consigue un nuevo teléfono.