Whitney’s circle of popular friends excludes her because she has befriended students outside their clique. She increasingly socializes with the punks. Now more comfortable expressing her true self, Whitney lands an advertising internship. A 1990s study on popularity conducted at UCLA showed that rhesus monkeys with higher serotonin levels were more popular. Yet popularity is also linked with aggression, risky behaviors, and lower levels of academic achievement. Whitney discovers that the perks of popularity end because high school does.

Regan hears that Mandy, who is unaware of Regan’s resignation, has said Regan should be fired. Regan complains to Mandy’s administrator. Reading thank you cards from her students, Regan notices that her students value the same qualities that made her unpopular among her colleagues.

Blue’s school unsuccessfully appeals the UAP’s rejection. The Simulated Congressional Hearings trip is the best of Blue’s life, but when he returns, he is filled with uncertainty about his future. With the support of his new friends, Blue is better able to work for his exams. Danielle’s social life has also taken off since her challenge started. Whitney volunteers to assemble the Senior Night slideshow, and reflects on her new, sincere friendships.