Pierce comes to Shirley with a business proposal just as she's about to get married to Andre. Meanwhile, Troy and Abed try to act "normal" for the wedding, Britta discovers a new skill, and Jeff struggles with his toast.
The members of the Study Group take jobs as celebrity impersonators to pay off Abed's debt to a celebrity impersonator business, but can Jeff be Ryan Seacrest without his fragile ego spiral out of control?
While Britta struggles to stay away from her old carny boyfriend, Jeff becomes obsessed with their relationship. Meanwhile, the dean stops by Troy and Abed's to recruit Troy for the dean of the school of refrigeration.
A fellow student has died and Biology class has been canceled, meaning everyone has to retake it in summer school. When the memorial service turns into a riot, Chang is granted special authoritative powers.
When Abed claims the Dean has been replaced by a doppelgänger he is forced to take psychiatric treatment. Naturally, the rest of the study group joins him at his session with Dr. Heidi.
The study group must help Pierce win a video game so that he can claim his inheritance from his father, but somebody may be out to ensure that he loses.
Jeff faces an old nemesis as Shirley and Pierce square off in Greendale court, Abed succumbs to his evil alter ego, and Troy decides to meet his destiny at air conditioning school.