Follow the lives of a group of students at what is possibly the world’s worst community college in the fictional locale of Greendale, Colorado.
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 being a loner. When Pierce finds out he was not invited, he joins anyway, disrupting their plans.
Jeff must come to a decision after he makes a date with a hot statistics professor which clashes with Annie’s Day of the Dead party.
Abed makes a documentary about Changnesia in order to receive a grant, with Jeff attempting to prove Chang is faking his disease.
The group members debate whether to add Annie’s crush, who recently enrolled at Greendale, or Señor Chang to the group.
Shirley’s ex-husband comes back into the picture, and she has big news for everyone.
Jeff helps Duncan romance Britta; Britta runs into some old anarchist friends and discovers they’ve moved on; Abed accidentally destroys some of Hickey’s drawings; Chang has a supernatural experience.
Britta and Professor Slater fight for Jeff's affection; Troy is upset when Abed doesn't ask him to move into his dorm room.
When a beloved classmate dies unexpectedly, Britta uses skills from psychology class to counsel the study group. Chang tries to seize more control over campus security.
When Dean Pelton plans a Sadie Hawkins dance, Britta throws a Sophie B. Hawkins dance in protest. At the dance Abed goes on two dates, each set up by Annie and Shirley.
Pierce is willing to do and wear whatever it takes to reach a new level of ascension in his Buddhist church. Meanwhile, Britta secretly tries to shake her reputation as a buzzkill, resulting in a prank gone horribly wrong. Britta’s misguided attempt at levity forces new campus security officers Annie and Shirley to investigate the crime.
Jeff suspects something’s up when an attractive classmate gets engaged to marry Pierce. As Troy invents a childhood trauma to impress his acting class, Abed challenges a professor’s theories about Who’s the Boss.
After a classroom smackdown with a group of “mean girls” led by Meghan, Britta, Shirley, and Annie bond with Abed by turning him into the ultimate “mean girl.” Meanwhile, Jeff and Troy embrace a zen-like spirituality under the guidance of a groundskeeper when they come across a secret trampoline on campus. Determined to uncover the source of their new bliss, Pierce ends up taking a disastrous turn on the trampoline and lands in the hospital.
Troy and Abed switch bodies – an homage of Freaky Friday – while the valedictorian race between Annie and Shirley sees the pair team up to take down Leonard who is currently #1 in the class.
Jeff's schoolmates come to his aid when they learn he is living out of his car. Pierce joins Vaughn's band while Annie and Troy plan out his date with another girl.
While Jeff takes interest in a pottery class, Pierce invites his friends to his boating class.
When Pierce’s mother dies, the group helps to comfort him. After putting Jeff in the hospital, by one of her class pranks going awry, Professor Bauer takes a leave of absence and Professor Duncan attempts to take over her Anthropology class.
The war between Abed and Troy intensifies, prompting Jeff to try to negotiate a truce between the former best friends while the rest of the group choose sides.
It’s family day at Greendale Community College and the gang’s families come to campus to join in on the fun.
When the school board asks Dean Pelton to make a new commercial for the school, he enlists the study group to star in his production. Meanwhile, Abed films all the activities for a documentary.
As the Greendale student body enjoys their year-end picnic, Dean Pelton announces plans for a small, quick, safe game of paintball. As the game heats up, alliances are formed – and broken – and friendships are put to the test. When a mysterious and threatening figure emerges on the Greendale campus, it becomes apparent that this is no ordinary game of paintball.
Jeff begins experiencing extreme narcissism. The group helps Abed get rid of debt by impersonating various celebrities at a Bar Mitzvah.
