On the way to a Halloween party, the study group must free Pierce from his panic room and slowly comes to suspect that his mansion is haunted.

Troy worries about losing Abed to a fellow Inspector Spacetime fan at a convention for the show, while Annie fantasizes about being married to Jeff.

The study group contends with a group of German students who take over the study room. Chang makes his return to campus.

Britta joins Jeff to see his estranged father on Thanksgiving. Shirley invites the rest of the group to spend the holiday with her judgmental in-laws.

Jeff agrees to represent Shirley in a case against Pierce to determine official ownership of their new sandwich shop.

Jeff agrees to represent Shirley in a case against Pierce to determine official ownership of their new sandwich shop.

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 Jeff turns his speech into an angry anti-Greendale rant.

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.

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.

When a carnival comes to Greendale, Annie goes to great lengths to make sure that Britta doesn’t contact her carnival worker ex-boyfriend.

After sending Troy and Britta on a date, Annie volunteers to keep Abed company in his Dreamatorium.

The study group is slowly convinced to fill in for the Glee Club at Greendale’s Christmas pageant.

When Shirley’s remarriage to Andre threatens to put her dreams of starting a business with Pierce on hold, Britta steps in.

The study group must work as celebrity impersonators at a bar mitzvah to pay off Abed’s debt to a talent agency owner.

Annie has second thoughts about moving in with Troy and Abed once she realizes that they expect her to live in a blanket fort.

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.

When Shirley agrees to coach Jeff in foosball, they realize that she bullied him mercilessly when they were kids.

The study group struggles to incorporate a fellow classmate while working on a project for Professor Kane’s class.

When Jeff introduces an element of randomness into Troy and Abed’s housewarming party, reality splits into six timelines.

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.

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.

As Jeff tries to keep Pierce from rejoining the study group, Dean Pelton faces off with Vice Dean Laybourne for control of Greendale.

As Annie competes with an overachieving rival in a Model United Nations competition, Jeff wrestles with his feelings for his ambitious friend.

Jeff is suspicious of Pierce’s engagement to a pretty classmate. Troy invents a childhood trauma to impress Britta, and Abed challenges a professor.

Working on their final anthropology diorama, Chang finds a cache of items stolen by Troy’s monkey that dredge up unhappy memories for the study group.

As the semester ends, the anthropology final is disrupted when Shirley goes into labor and her husband, Andre, is summoned to school for the birth.

A $100,000 paintball war prize pits members of the study group against one another, until they decide to join forces to stop a mysterious challenger.

As the paintball war is revealed to be a City College plot, Jeff and Troy vie for control of Greendale’s ragtag army, while Pierce betrays the group.

On Valentine’s Day, Troy and Abed compete for the attention of an assistant librarian, while Britta tries to show she’s open-minded about lesbians.

Claiming that he is about to die, Pierce summons the study group to the hospital to bequeath his belongings to them.

For an upcoming vice-presidential visit, Glendale’s Dean Pelton hastily organizes an election for student body president that pits Annie against Jeff.

Although Shirley and Andre don’t want Chang involved with her baby, he resolves to be a good dad. Abed and Troy’s new friend may be a war criminal.

Jeff and the group arrange a Pulp Fiction birthday party for Abed, but he has his own plans, starting with an expensive dinner for himself and Jeff.

Troy’s friends help him celebrate his 21st birthday.

The meaning of Christmas is lost and Abed’s intense fixation on the holiday concerns the group in this special stop-motion animation episode.

With Chang pressing for membership in the study group, Annie’s latest crush has Jeff reeling as Shirley unveils some stunning news.

Pierce’s efforts to bribe director Annie may undermine the theater group’s antidrug play; Jeff’s texting prank puts Britta in an awkward situation.

Abed invites “Fat Neil” to play a game of Dungeons & Dragons with the rest of the study group, hoping to boost his confidence, after Jeff becomes concerned about him…

Dean Pelton’s army surplus party food sparks an outbreak of zombie-ism at the Greendale Halloween party.

Abed endears himself to the girls after he offers to take down their enemies on campus; Jeff and Troy stumble onto a groundskeeper’s secret paradise.

Annie’s missing pen leads to friction within the group.

When Jeff tries to obtain credit for a fictitious class, the unintended consequences rock Greendale. Abed and Troy build an elaborate blanket fort.