Miz Atoll decides it is time to nominate an official leader of Radio Active, a title Blaire covets. Bribing Roger to help him, Blaire attempts to sabotage the other candidates, until Morgan and Tanya become wise to what is transpiring.
It's 'War of the Worlds' all over again when George accidentally misreads a school news headline and announces that Upper Redwood High has been invaded by aliens. The student body panics when they hear the news.
Career Week is in full swing at Upper Redwood High, but the Radio Active crew is none too pleased with the selection of possible future vocations being introduced to them thanks to the guest speakers Ms. Atoll has chosen to invite.
Tanya adds a new feature to the Radio Active broadcast called Speak Your Mind, a forum students can use to voice their concerns. The broadcast becomes an instant sensation, except now, everyone suddenly hates each other.
When the radio transmission malfunctions during Blaire and George's broadcast, rather than fixing the issue, George intercepts a phone conversation between two ex-cons. Terrified that the criminals will find out, the two go into hiding.
After Blaire complains about his sports coach, the Radio Active crew tell him the tale of Miss Snibble, the most-feared PhysEd teacher in school history whose ghost, legend has it, roams the halls after dark. This prompts a new project.
Mr. Noseworthy is so anxious about an upcoming visit by an inspector from the school board that he decides to take Sarah off mail duty, demoralizing Sarah. To compound the issue, it seems that everyone in Radio Active is ignoring her.
To get a date with Morgan, Blaire promises he will not date other girls, but it soon becomes apparent that his timing could not be worse when Mr. Noseworthy offers Blaire a job coaching an all-girl hockey team. Blaire takes the job.
Morgan is sick of seeing Roger always getting his way by sucking up to everybody. Roger explains that he is only being tactful and diplomatic, a response Morgan feels is hypocritical, prompting Roger to suggest that Morgan lacks sincerity.
Morgan asks the coolest guy in school, Matt Stoker, to be her lab partner. After he agrees, Morgan begins to claim that he is her boyfriend. Soon, Morgan's lies spin out of control, and the entire school thinks she and Matt are engaged.
While reading the Guinness Book of World Records, George notices that the record for the longest continual high school radio broadcast is 20 hours. The gang then decide to beat the record, but Ms. Atoll refuses to give them permission.
When Morgan takes Roger's criticism that she is overly aggressive on her radio show too seriously, Morgan proceeds to tone things down to the point where she becomes an annoyingly sweet version of herself. The gang try to be supportive.
The students discover that George has secretly been attempting to upgrade Radio Active's status from being a radio program to being a TV program and love the idea. The students then hatch a creative plan to produce a pilot show.
Feeling particularly energetic one morning after downing a bowlful of Sarah's sugar-laden cereal, Morgan is compelled to sing along to the latest granola-girl hit she plays for the public. Little does she know, but everyone can hear her.
Roger decides that it might be worthwhile to learn a musical instrument to attract girls. Meanwhile, there is a high-profile dance soon, and Morgan does not have a date, and has a zit on her forehead. Desperation attracts desperation.
Tanya covers the negative effects of eating junk food. Mr. Noseworthy is so taken with her report that he institutes a new health food policy at Upper Redwood High, and to enforce the new guidelines, he makes Tanya the junk food inspector.
George accidentally erases a complex scientific problem written on the blackboard. After looking up the solution, George rewrites the answer, prompting everyone to think they have a genius in their midst, so they test him further.
Morgan is starting to believe that she will never find her soulmate. Feeling bad for her, Tanya decides to find an ideal man for Morgan. After studying everyone's astrology charts, Tanya determines that George is Morgan's perfect match.
Roger is being obnoxious about his high IQ, greatly annoying Morgan, so the two decide to hold a competition to see who can best impart their knowledge and intelligence onto someone else. Morgan will teach Blaire. Roger will teach George.
When Mr. Noseworthy admits that disc-jockeying has long interested him, he asks the Radio Active crew if he can give it a try. The students foresee low ratings and certain failure, so they immediately strive to curb Noseworthy's eagerness.
Upper Redwood implements a new school uniform policy leaving the students feeling like they have lost their individuality. The boys are extra-displeased when the administration decides kilts are unisex and that everyone will wear them.
Morgan and Blaire accidentally get locked in the booth together. With the radio broken, and no telephone, they cannot call for help, and since the school day ended, they cannot signal for help. Thus trapped, certain truths begin to emerge.
After noticing the differences between she and her sister, Sarah begins to believe that she is adopted and enlists everyone to help her uncover the truth. When they overhear Miss Atoll's phone conversation, their imaginations run wild.
Ms. Atoll enters the classroom and begins teaching the most boring class ever, and as she drones on, we enter the minds of each student and experience their daydreams based on what they had expressed to one another before class that day.
While George is looking for loose change in the sofa, he finds what appears to be a love letter written by Mr. Noseworthy to Ms. Atoll. The weird thing is, the letter dates to the early '80s, when both attended Upper Redwood together.
When the school is hit with major government cutbacks and can no longer afford to finance extracurricular activities, each student feels their cause is the most deserving and decide to raise funds for their own individual school clubs.