As a new semester gets underway at Greendale Community College, Jeff is the only member of the study group who doesn’t miss Pierce. But when their offensive friend unexpectedly returns after a summer spent getting in touch with his spiritual side & asks to rejoin the group, Jeff points out that there is no more room in the biology class they have all signed up for. & as Jeff argues that their friendships should be able to survive even without the structure of the study group, Abed struggles to find a new favorite television show. ...

When the members of Greendale’s Glee Club have a collective nervous breakdown after Jeff reports them to the government for copyright infringement, their director, Cory Radison, tries to convince the study group to fill in for them in the school’s Christmas pageant. Though they quickly reject his offer, Abed is entranced by “ Mister Rad’s” promise that the pageant would be a way to convince his friends to spend the holiday together. & although Troy is a Jehovah’s Witness & isn’t supposed to celebrate Christmas, Abed tells him that the pageant would be an opportunity to infiltrate the holiday & take it down from the inside. ...

Pierce tells the study group that he is expanding Hawthorne Industries now that his father is gone, prompting Britta to suggest that he invest in Shirley’s idea for a new sandwich shop in Greendale’s cafeteria. When Shirley’s ex-husband Andre proposes to her, Shirley tells Pierce that she is too busy planning their second wedding to concentrate on starting a business. Concerned that Shirley is abandoning her dreams in favor of getting married, Britta offers to plan the wedding for her, despite her negative views on marriage. When it turns out that she has a gift for wedding planning, Britta worries that she is destined to be a wife & mother. ...

Thanks to his new psychiatrist, Jeff is enjoying the benefits of anti-anxiety medication, including dramatically increased self-confidence. But as he wows everyone around him with his impressive charisma, Britta is concerned that his growing ego will overtake the rest of his personality. Meanwhile, Abed has started hiring celebrity impersonators to act out movie scenes with him in everyday life. & though he soon owes thousands of dollars to the talent agency, its owner Vinnie says he will forgive his debt if his friends agree to impersonate various celebrities at Howie Schwartz’s bar mitzvah. ...

Dean Pelton introduces Shirley & Pierce to a Subway “corpo-humanoid” representing the sandwich company who is now enrolled at Greendale due to a school law which states that any business on campus must be partially owned by a student. Hoping to clear the way for their own sandwich shop, Shirley & Pierce ask Britta to dig up some dirt on Subway by seducing the new student. Although she is initially offended, she soon realizes that she is attracted to the corporation’s human form. ...

When Britta learns that Greendale will host a carnival over the weekend, she worries about running into her carnival worker ex-boyfriend, Blade, & begs Annie to keep her from looking at her phone until Monday. Inspired by the unlikely name of Britta’s ex, Troy & Abed settle in for a night of watching the vampire movie Blade, while Annie deploys several techniques she learned in drug rehab to keep Britta away from her phone. Meanwhile, Vice Dean Laybourne orders Dean Pelton to convince Troy to enroll in his Air Conditioning Repair School, while Pierce feels left out of the study group because he doesn’t have a best friend. ...

When the biology test the study group is cramming for is postponed, Annie seizes the opportunity to send Britta & Troy on a date. Since Abed is disappointed that Troy won’t be spending their unexpected free time in the Dreamatorium with him, Annie volunteers to take his place. Despite her best efforts to fit into his elaborate Inspector Spacetime fantasy, Abed quickly loses patience with Annie & lashes out at her for setting up his best friend. Abed tells Annie that the Dreamatorium lets him test drive any scenario involving their friends. Abed then acts out a disastrous date between Dream Britta & Dream Troy. Frustrated with his controlling personality, Annie tries to give Abed some empathy & reconfigures the Dreamatorium’s engine to prioritize other people’s needs. But when his brain short circuits, she worries that she’s gone too far. ...

When the study group discovers that the yam they were growing for Professor Kane’s biology class has been knocked to the floor & smashed, Shirley orders Troy & Abed to investigate. After questioning Pierce & Todd, they learn that Magnitude had the lab key on the night of the crime. Once they track him down, he tells them that he lost the key when his backpack was stolen in the library. Troy & Abed set up a sting operation to catch the thief & discover that Star-Burns broke into the classroom to steal equipment for his meth lab. But when he tells them that he saw Todd fleeing the scene, they agree to keep his secret. ...

After Star-Burns dies in a meth lab explosion, Greendale struggles to come to terms with its loss. Although Jeff tactlessly encourages his friends to move on as quickly as possible, Britta offers her services as a grief counselor to the rest of the study group. But when they discover that their biology class has been cancelled because of the explosion & that they will have to make up the credits by enrolling in summer school, even Jeff breaks down & cries. Meanwhile, Chang lobbies for more power as Greendale’s head of security, but Dean Pelton balks at his request to use pepper spray & enact martial law. ...

Two months after being expelled from Greendale for inciting a riot, the study group gathers for a potluck dinner. When Abed arrives in the custody of a police officer after having been arrested for trespassing on the Greendale campus, his friends are shocked. Since the dean says he won’t press charges if Abed sees a psychiatrist to deal with his Greendale obsession, the rest of the group agrees to support him by accompanying him to the appointment with Dr. Heidi. & though they try to convince the doctor that Abed isn’t crazy, they are forced to admit that his already odd behavior has become increasingly troubling since they were expelled. ...