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.

Paying homage to "It's a Wonderful Life" and "The Twilight Zone Person or Persons Unknown," and lifting dialogue from "A Charlie Brown Christmas," when Spencer builds a metal Christmas tree containing an electromagnet that sets the gifts that Carly plans to give on fire, she wishes that her brother had been normal. An angel named Mitch hears her wish and grants it, which teaches her a valuable lesson.

The iCarly gang hire their doppelgänger fans to stand in for them while they sneak off to interview some mixed martial arts athletes.

Carly gives Sam a makeover when she develops a crush on a boy at school who only likes girly-girls. Somewhat similarly, Spencer thinks a girl only likes him because of a tuxedo.

Carly and Spencer become upset when their new neighbor Griffin steals the motorcycle that Carly bought for Spencer. Spencer lets 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.

When Carly reunites with her long-lost BFF, Missy, Sam fears that Missy is trying to replace her. Meanwhile, a boy traps Spencer in the basement as revenge.

Carly is convinced that a show in Hollywood is stealing her ideas, so she and her friends take a trip to Los Angeles in order to stop the cast and crew.

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".