Annie lobbies for her new crush, who is also Jeff's rival, to join the study group, but a jealous Jeff counters with Chang. Meanwhile, Shirley announces that she's pregnant, but she doesn't know that it could be Chang's.
Pierce bribes Annie into getting him a bigger role in her anti-drug play, Jeff gets in trouble when he sends a lewd text message from Britta's phone, and Shirley rejects Chang's attempts to be friendly to her.
The study group plays Dungeons & Dragons with another classmate to improve his spirits, but Pierce's jealousies cause their good intentions to backfire.
Jeff hangs out with Professor Duncan after a fight with the study group, but Chang tags along and starts a party. Meanwhile, Abed and Troy fight for a librarian's affection, and Britta goes to a dance with a girl she thinks is a lesbian.
Pierce pretends to be dying so that he can bequeath a series of cryptic and sometimes mean-spirited gifts to his study partners, and Abed decides to shoot a documentary film of the situation.
Anticipating a visit from the vice president, dean Pelton holds an election for student body president. An idealistic Annie decides to run, but Jeff decides to run against her to spite her and show how stupid politics can be.
Jeff uses Shirley's parental rights waiver against Chang as a way to get Chang out of the apartment, while Britta is afraid to tell Abed and Troy that their new friend is a war criminal.
Jeff's plan to keep Pierce out of the Study Group backfires when he gets kicked out instead, Abed copes with bad news about Cougar Town, and Dean Pelton's authority is challenged by another Greendale dean.
When another over-achieving student steals Annie's idea for a Model U.N. club, the Study Group comes to her rescue. Meanwhile, new security cop Chang tries to stop Britta's last-ditch efforts to create a campus disturbance.
Chaos ensues when the Study Group tries to divide itself up into biology lab partners, and Chang appoints himself security "detective," and tries to solve a mystery that is only in his head.
At Abed and Troy's housewarming party, Jeff decides to let the decision on who gets the pizza rest on the roll of the dice, leaving Abed to contemplate six alternate realities.
During her pre-Halloween party, Britta gets everyone to tell a spooky story so that she can find out which member of the study group scored out as a psychopath on their psychology profiles.
Pierce gets a visit from his bigoted father after his wipes become a hit in the gay community, and the dean of the School of Refrigeration recruits Troy to become his student.
The dean is given the task of making a Greendale commercial, but the shoot soon goes over budget and spirals out of control - with Abed documenting the experience.
Shirley teaches Jeff foosball so that he can beat a team of cocky, obnoxious Germans, while Annie creates an overly elaborate ruse so that she doesn't have to tell Abed that she broke his special edition The Dark Knight DVD.
A holiday-themed parody of "Glee" in which Abed tries to persuade each member of the Study Group to join the glee club so that they can qualify for regionals.