As Jeff tries to keep Pierce from rejoining the study group, Dean Pelton faces off with Vice Dean Laybourne for control of Greendale. Britta helps Abed find a new favorite TV show.
Britta finds herself at odds with Chang when she is torn between her newly conventional life and her rebellious past
The study group struggles to incorporate a fellow classmate while working on a project for Professor Kane's class. Chang causes a fire while trying to solve a strange mystery of his own making.
When Jeff introduces an element of randomness into Troy and Abed's housewarming party, reality splits into six timelines in which the group's complicated relationships play out in different ways
When Britta finds that an anonymous personality test suggests that one of them is a homicidal maniac, the study group members use a series of scary Halloween stories to expose the killer
When a drag queen's song makes Hawthorne Wipes an iconic gay product, Pierce embraces it until his homophobic dad Cornelius shows up to squelch the idea
Annie has second thoughts about moving in with Troy and Abed once she realises that they expect her to live in a blanket fort
As Dean Pelton films an updated commercial for Greendale, the production takes a wild turn once he discovers that a famous Greendale alum has agreed to appear in the ad
When Shirley agrees to coach Jeff in foosball, they realise that she bullied him mercilessly when they were kids
The study group is slowly convinced to fill in for the Glee Club at Greendale's Christmas pageant after Abed decides he wants them to spend the holiday together
When Shirley's remarriage to Andre threatens to put her dreams of starting a business with Pierce on hold, Britta takes over and discovers, much to her chagrin, that she is a gifted wedding planner
The study group must work as celebrity impersonators at a bar mitzvah to pay off Abed's debt to a talent agency owner
When Britta falls for the human embodiment of the Subway sandwich chain, Shirley and Pierce hope to use the situation to their advantage
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
Jeff tries to figure out why Britta's ex has so much power over her, while Pierce and Chang become best friends
After sending Troy and Britta on a date, Annie volunteers to keep Abed company in his Dreamatorium
When the yam the study group was growing for biology class is killed, Troy and Abed are on the case
After a classmate suddenly dies, the study group decides to host a memorial. But when Jeff turns his speech into an angry anti-Greendale rant, the gathering quickly becomes a riot.
After Abed is caught trespassing at Greendale, he and his friends visit a psychiatrist
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
The study group stages an elaborate heist to break in to Greendale and free Dean Pelton from the clutches of Chang
As Abed struggles to stay sane without his best friend, Jeff agrees to represent Shirley in a case against Pierce to determine official ownership of their new sandwich shop