Peggy determinedly collects research for a pitch. Pete is invited to join an exclusive club. Joan looks forward to spending time with her friend.
Dean Pelton lets two designers test their new social networking application at Greendale, leading to a war among the students; Professor Hickey decides to go underground until the battle ends.
Jeff helps Duncan pursue Britta.
Annie and Professor Hickey work the Greendale bureaucracy to get a bulletin board back on the wall. Jeff, Chang, Shirley and Professor Duncan discover the challenges of planning a school dance.
Abed sets up a game of "Hot Lava" at the college as a going away present for Troy.
After Pierce Hawthorne's funeral, the gang retires to the study room. They are surprised with a communal polygraph test by Pierce's attorney to prove themselves innocent of his murder. They are individually quizzed in an effort to prove their involvement of the potential crime.moreless
Annie gets Jeff to help her in the hunt for the "Asscrack bandit". One student returns from the dead, while Shirley comes with news of another persons death.
Jeff starts his position as a teacher. Abed gets the rest of the group to take a class about Nicolas Cage.
Jeff returns to Greendale a year after graduation on a mission. He meets the rest of the group and finds out what has happened to them since graduation.
With his personal and professional life crumbling around him, Don positions himself for a change of scenery. Meanwhile, Pete's life is falling apart as well, thanks to the meddling of Bob Benson.
The client list at SCDP changes, causing some big ramifications for the staff, both personally and in business.
Peggy plans for the future. Roger courts a potential client.
The Drapers get quite an offer, SCDP initiate Project K and Harry and Joan have a showdown.
The gang celbrates Christmas together for the first time. As they gather at Jeff's place, Annie decides to invite Prof Cornwallis to dinner in an effort to boost their grades on their last test.moreless
Don clashes with a client. Pete entertains a guest. Peggy struggles to motivate the staff.
Britta throws a Sophie B. Hawkins dance in protest of the Dean's Sadie Hawkins dance. Meanwhile, Annie and Shirley's respective blind dates for Abed leads him to attempt the classic sitcom trope of two dates in one night.moreless
Greendale recruits a rich community college "whale," who has the potential to be enrolled and spending cash on campus for over a decade.
Greendale comes together to unlock the mystery of Chang's amnesia, which Abed films as a documentary.
Jeff finally reunites with his estranged father.
The study group plans an elaborate Oktoberfest celebration! But is it all just to trick the Germans?
In support of Troy and Abed, the study group heads to InspectiCon - the annual Inspector Spacetime Convention.