| 3x1 | | Biology 101 | As Jeff tries to keep Pierce from rejoining the study group, Dean Pelton faces off with Vice Dean Laybourne for control of Greendale. |
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| 3x2 | | Geography of Global Conflict | As Annie competes with an overachieving rival in a Model United Nations competition, Jeff wrestles with his feelings for his ambitious friend. |
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| 3x3 | | Competitive Ecology | The study group struggles to incorporate a fellow classmate while working on a project for Professor Kane's class. |
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| 3x4 | | Remedial Chaos Theory | When Jeff introduces an element of randomness into Troy and Abed's housewarming party, reality splits into six timelines. |
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| 3x5 | | Horror Fiction in Seven Spooky Steps | When a personality test suggests that one group member is a homicidal maniac, they use a series of scary Halloween stories to expose the killer. |
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| 3x6 | | Advanced Gay | When a drag queen's song makes Hawthorne Wipes an iconic gay product, Pierce embraces it, until his homophobic dad shows up to squelch the idea. |
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| 3x7 | | Studies in Modern Movement | Annie has second thoughts about moving in with Troy and Abed once she realizes that they expect her to live in a blanket fort. |
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| 3x8 | | Documentary Filmmaking: Redux | As Dean Pelton films a new commercial for Greendale, the production takes a wild turn once he discovers that a famous alum has agreed to appear in it. |
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| 3x9 | | Foosball and Nocturnal Vigilantism | When Shirley agrees to coach Jeff in foosball, they realize that she bullied him mercilessly when they were kids. |
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| 3x10 | | Regional Holiday Music | The study group is slowly convinced to fill in for the Glee Club at Greendale's Christmas pageant. |
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| 3x11 | | Urban Matrimony and the Sandwich Arts | When Shirley's remarriage to Andre threatens to put her dreams of starting a business with Pierce on hold, Britta steps in. |
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| 3x12 | | Contemporary Impressionists | The study group must work as celebrity impersonators at a bar mitzvah to pay off Abed's debt to a talent agency owner. |
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| 3x13 | | Digital Exploration of Interior Design (1) | When Britta falls for the human embodiment of the Subway sandwich chain, Shirley and Pierce hope to use the situation to their advantage. |
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| 3x14 | | Pillows and Blankets (2) | The students of Greendale are drawn into an epic pillow fight as Troy and Abed start a war that threatens to destroy their unique friendship. |
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| 3x15 | | Origins of Vampire Mythology | When a carnival comes to Greendale, Annie goes to great lengths to make sure that Britta doesn't contact her carnival worker ex-boyfriend. |
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| 3x16 | | Virtual Systems Analysis | After sending Troy and Britta on a date, Annie volunteers to keep Abed company in his Dreamatorium. |
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| 3x17 | | Basic Lupine Urology | When the yam the study group was growing for biology class is killed, Troy and Abed are on the case. |
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| 3x18 | | Course Listing Unavailable | After a classmate suddenly dies, the study group decides to host a memorial, but Jeff turns his speech into an angry anti-Greendale rant. |
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| 3x19 | | Curriculum Unavailable | After Abed is caught trespassing at Greendale, he and his friends visit a psychiatrist. |
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| 3x20 | | Digital Estate Planning | Pierce and his closest friends are summoned to Hawthorne Labs to play a video game that will determine who will inherit his father's fortune. |
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| 3x21 | | The First Chang Dynasty | The study group stages an elaborate heist to break in to Greendale and free Dean Pelton from the clutches of Chang. |
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| 3x22 | | Introduction to Finality | Jeff agrees to represent Shirley in a case against Pierce to determine official ownership of their new sandwich shop. |
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